Commit | Line | Data |
---|---|---|
e4b17023 JM |
1 | /* Compiler driver program that can handle many languages. |
2 | Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, | |
3 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, | |
4 | 2010, 2011, 2012 | |
5 | Free Software Foundation, Inc. | |
6 | ||
7 | This file is part of GCC. | |
8 | ||
9 | GCC is free software; you can redistribute it and/or modify it under | |
10 | the terms of the GNU General Public License as published by the Free | |
11 | Software Foundation; either version 3, or (at your option) any later | |
12 | version. | |
13 | ||
14 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
15 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 | for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with GCC; see the file COPYING3. If not see | |
21 | <http://www.gnu.org/licenses/>. */ | |
22 | ||
23 | /* This program is the user interface to the C compiler and possibly to | |
24 | other compilers. It is used because compilation is a complicated procedure | |
25 | which involves running several programs and passing temporary files between | |
26 | them, forwarding the users switches to those programs selectively, | |
27 | and deleting the temporary files at the end. | |
28 | ||
29 | CC recognizes how to compile each input file by suffixes in the file names. | |
30 | Once it knows which kind of compilation to perform, the procedure for | |
31 | compilation is specified by a string called a "spec". */ | |
32 | ||
33 | #include "config.h" | |
34 | #include "system.h" | |
35 | #include "coretypes.h" | |
36 | #include "multilib.h" /* before tm.h */ | |
37 | #include "tm.h" | |
38 | #include "xregex.h" | |
39 | #include "obstack.h" | |
40 | #include "intl.h" | |
41 | #include "prefix.h" | |
42 | #include "gcc.h" | |
43 | #include "diagnostic.h" | |
44 | #include "flags.h" | |
45 | #include "opts.h" | |
46 | #include "params.h" | |
47 | #include "vec.h" | |
48 | #include "filenames.h" | |
49 | ||
50 | /* By default there is no special suffix for target executables. */ | |
51 | /* FIXME: when autoconf is fixed, remove the host check - dj */ | |
52 | #if defined(TARGET_EXECUTABLE_SUFFIX) && defined(HOST_EXECUTABLE_SUFFIX) | |
53 | #define HAVE_TARGET_EXECUTABLE_SUFFIX | |
54 | #endif | |
55 | ||
56 | /* By default there is no special suffix for host executables. */ | |
57 | #ifdef HOST_EXECUTABLE_SUFFIX | |
58 | #define HAVE_HOST_EXECUTABLE_SUFFIX | |
59 | #else | |
60 | #define HOST_EXECUTABLE_SUFFIX "" | |
61 | #endif | |
62 | ||
63 | /* By default, the suffix for target object files is ".o". */ | |
64 | #ifdef TARGET_OBJECT_SUFFIX | |
65 | #define HAVE_TARGET_OBJECT_SUFFIX | |
66 | #else | |
67 | #define TARGET_OBJECT_SUFFIX ".o" | |
68 | #endif | |
69 | ||
70 | static const char dir_separator_str[] = { DIR_SEPARATOR, 0 }; | |
71 | ||
72 | /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */ | |
73 | #ifndef LIBRARY_PATH_ENV | |
74 | #define LIBRARY_PATH_ENV "LIBRARY_PATH" | |
75 | #endif | |
76 | ||
77 | /* If a stage of compilation returns an exit status >= 1, | |
78 | compilation of that file ceases. */ | |
79 | ||
80 | #define MIN_FATAL_STATUS 1 | |
81 | ||
82 | /* Flag set by cppspec.c to 1. */ | |
83 | int is_cpp_driver; | |
84 | ||
85 | /* Flag set to nonzero if an @file argument has been supplied to gcc. */ | |
86 | static bool at_file_supplied; | |
87 | ||
88 | /* Definition of string containing the arguments given to configure. */ | |
89 | #include "configargs.h" | |
90 | ||
91 | /* Flag saying to print the command line options understood by gcc and its | |
92 | sub-processes. */ | |
93 | ||
94 | static int print_help_list; | |
95 | ||
96 | /* Flag saying to print the version of gcc and its sub-processes. */ | |
97 | ||
98 | static int print_version; | |
99 | ||
100 | /* Flag indicating whether we should ONLY print the command and | |
101 | arguments (like verbose_flag) without executing the command. | |
102 | Displayed arguments are quoted so that the generated command | |
103 | line is suitable for execution. This is intended for use in | |
104 | shell scripts to capture the driver-generated command line. */ | |
105 | static int verbose_only_flag; | |
106 | ||
107 | /* Flag indicating how to print command line options of sub-processes. */ | |
108 | ||
109 | static int print_subprocess_help; | |
110 | ||
111 | /* Whether we should report subprocess execution times to a file. */ | |
112 | ||
113 | FILE *report_times_to_file = NULL; | |
114 | ||
115 | /* Nonzero means place this string before uses of /, so that include | |
116 | and library files can be found in an alternate location. */ | |
117 | ||
118 | #ifdef TARGET_SYSTEM_ROOT | |
119 | static const char *target_system_root = TARGET_SYSTEM_ROOT; | |
120 | #else | |
121 | static const char *target_system_root = 0; | |
122 | #endif | |
123 | ||
124 | /* Nonzero means pass the updated target_system_root to the compiler. */ | |
125 | ||
126 | static int target_system_root_changed; | |
127 | ||
128 | /* Nonzero means append this string to target_system_root. */ | |
129 | ||
130 | static const char *target_sysroot_suffix = 0; | |
131 | ||
132 | /* Nonzero means append this string to target_system_root for headers. */ | |
133 | ||
134 | static const char *target_sysroot_hdrs_suffix = 0; | |
135 | ||
136 | /* Nonzero means write "temp" files in source directory | |
137 | and use the source file's name in them, and don't delete them. */ | |
138 | ||
139 | static enum save_temps { | |
140 | SAVE_TEMPS_NONE, /* no -save-temps */ | |
141 | SAVE_TEMPS_CWD, /* -save-temps in current directory */ | |
2bbc7733 | 142 | SAVE_TEMPS_OBJ, /* -save-temps in object directory */ |
143 | SAVE_TEMPS_OBJZ /* -save-temps in object directory with mangling */ | |
e4b17023 JM |
144 | } save_temps_flag; |
145 | ||
146 | /* Output file to use to get the object directory for -save-temps=obj */ | |
147 | static char *save_temps_prefix = 0; | |
148 | static size_t save_temps_length = 0; | |
149 | ||
150 | /* The compiler version. */ | |
151 | ||
152 | static const char *compiler_version; | |
153 | ||
154 | /* The target version. */ | |
155 | ||
156 | static const char *const spec_version = DEFAULT_TARGET_VERSION; | |
157 | ||
158 | /* The target machine. */ | |
159 | ||
160 | static const char *spec_machine = DEFAULT_TARGET_MACHINE; | |
161 | ||
162 | /* Nonzero if cross-compiling. | |
163 | When -b is used, the value comes from the `specs' file. */ | |
164 | ||
165 | #ifdef CROSS_DIRECTORY_STRUCTURE | |
166 | static const char *cross_compile = "1"; | |
167 | #else | |
168 | static const char *cross_compile = "0"; | |
169 | #endif | |
170 | ||
171 | /* Greatest exit code of sub-processes that has been encountered up to | |
172 | now. */ | |
173 | static int greatest_status = 1; | |
174 | ||
175 | /* This is the obstack which we use to allocate many strings. */ | |
176 | ||
177 | static struct obstack obstack; | |
178 | ||
179 | /* This is the obstack to build an environment variable to pass to | |
180 | collect2 that describes all of the relevant switches of what to | |
181 | pass the compiler in building the list of pointers to constructors | |
182 | and destructors. */ | |
183 | ||
184 | static struct obstack collect_obstack; | |
185 | ||
186 | /* Forward declaration for prototypes. */ | |
187 | struct path_prefix; | |
188 | struct prefix_list; | |
189 | ||
190 | static void init_spec (void); | |
191 | static void store_arg (const char *, int, int); | |
192 | static void insert_wrapper (const char *); | |
193 | static char *load_specs (const char *); | |
194 | static void read_specs (const char *, int); | |
195 | static void set_spec (const char *, const char *); | |
196 | static struct compiler *lookup_compiler (const char *, size_t, const char *); | |
197 | static char *build_search_list (const struct path_prefix *, const char *, | |
198 | bool, bool); | |
199 | static void xputenv (const char *); | |
200 | static void putenv_from_prefixes (const struct path_prefix *, const char *, | |
201 | bool); | |
202 | static int access_check (const char *, int); | |
203 | static char *find_a_file (const struct path_prefix *, const char *, int, bool); | |
204 | static void add_prefix (struct path_prefix *, const char *, const char *, | |
205 | int, int, int); | |
206 | static void add_sysrooted_prefix (struct path_prefix *, const char *, | |
207 | const char *, int, int, int); | |
208 | static char *skip_whitespace (char *); | |
209 | static void delete_if_ordinary (const char *); | |
210 | static void delete_temp_files (void); | |
211 | static void delete_failure_queue (void); | |
212 | static void clear_failure_queue (void); | |
213 | static int check_live_switch (int, int); | |
214 | static const char *handle_braces (const char *); | |
215 | static inline bool input_suffix_matches (const char *, const char *); | |
216 | static inline bool switch_matches (const char *, const char *, int); | |
217 | static inline void mark_matching_switches (const char *, const char *, int); | |
218 | static inline void process_marked_switches (void); | |
219 | static const char *process_brace_body (const char *, const char *, const char *, int, int); | |
220 | static const struct spec_function *lookup_spec_function (const char *); | |
221 | static const char *eval_spec_function (const char *, const char *); | |
222 | static const char *handle_spec_function (const char *); | |
223 | static char *save_string (const char *, int); | |
224 | static void set_collect_gcc_options (void); | |
225 | static int do_spec_1 (const char *, int, const char *); | |
226 | static int do_spec_2 (const char *); | |
227 | static void do_option_spec (const char *, const char *); | |
228 | static void do_self_spec (const char *); | |
229 | static const char *find_file (const char *); | |
230 | static int is_directory (const char *, bool); | |
231 | static const char *validate_switches (const char *); | |
232 | static void validate_all_switches (void); | |
233 | static inline void validate_switches_from_spec (const char *); | |
234 | static void give_switch (int, int); | |
235 | static int used_arg (const char *, int); | |
236 | static int default_arg (const char *, int); | |
237 | static void set_multilib_dir (void); | |
238 | static void print_multilib_info (void); | |
239 | static void perror_with_name (const char *); | |
240 | static void display_help (void); | |
241 | static void add_preprocessor_option (const char *, int); | |
242 | static void add_assembler_option (const char *, int); | |
243 | static void add_linker_option (const char *, int); | |
244 | static void process_command (unsigned int, struct cl_decoded_option *); | |
245 | static int execute (void); | |
246 | static void alloc_args (void); | |
247 | static void clear_args (void); | |
248 | static void fatal_signal (int); | |
249 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) | |
250 | static void init_gcc_specs (struct obstack *, const char *, const char *, | |
251 | const char *); | |
252 | #endif | |
253 | #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX) | |
254 | static const char *convert_filename (const char *, int, int); | |
255 | #endif | |
256 | ||
257 | static const char *getenv_spec_function (int, const char **); | |
258 | static const char *if_exists_spec_function (int, const char **); | |
259 | static const char *if_exists_else_spec_function (int, const char **); | |
260 | static const char *replace_outfile_spec_function (int, const char **); | |
261 | static const char *remove_outfile_spec_function (int, const char **); | |
262 | static const char *version_compare_spec_function (int, const char **); | |
263 | static const char *include_spec_function (int, const char **); | |
264 | static const char *find_file_spec_function (int, const char **); | |
265 | static const char *find_plugindir_spec_function (int, const char **); | |
266 | static const char *print_asm_header_spec_function (int, const char **); | |
267 | static const char *compare_debug_dump_opt_spec_function (int, const char **); | |
268 | static const char *compare_debug_self_opt_spec_function (int, const char **); | |
269 | static const char *compare_debug_auxbase_opt_spec_function (int, const char **); | |
270 | static const char *pass_through_libs_spec_func (int, const char **); | |
5ce9237c | 271 | static char *convert_white_space (char *); |
e4b17023 JM |
272 | \f |
273 | /* The Specs Language | |
274 | ||
275 | Specs are strings containing lines, each of which (if not blank) | |
276 | is made up of a program name, and arguments separated by spaces. | |
277 | The program name must be exact and start from root, since no path | |
278 | is searched and it is unreliable to depend on the current working directory. | |
279 | Redirection of input or output is not supported; the subprograms must | |
280 | accept filenames saying what files to read and write. | |
281 | ||
282 | In addition, the specs can contain %-sequences to substitute variable text | |
283 | or for conditional text. Here is a table of all defined %-sequences. | |
284 | Note that spaces are not generated automatically around the results of | |
285 | expanding these sequences; therefore, you can concatenate them together | |
286 | or with constant text in a single argument. | |
287 | ||
288 | %% substitute one % into the program name or argument. | |
289 | %i substitute the name of the input file being processed. | |
290 | %b substitute the basename of the input file being processed. | |
291 | This is the substring up to (and not including) the last period | |
292 | and not including the directory unless -save-temps was specified | |
293 | to put temporaries in a different location. | |
294 | %B same as %b, but include the file suffix (text after the last period). | |
295 | %gSUFFIX | |
296 | substitute a file name that has suffix SUFFIX and is chosen | |
297 | once per compilation, and mark the argument a la %d. To reduce | |
298 | exposure to denial-of-service attacks, the file name is now | |
299 | chosen in a way that is hard to predict even when previously | |
300 | chosen file names are known. For example, `%g.s ... %g.o ... %g.s' | |
301 | might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches | |
302 | the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it | |
303 | had been pre-processed. Previously, %g was simply substituted | |
304 | with a file name chosen once per compilation, without regard | |
305 | to any appended suffix (which was therefore treated just like | |
306 | ordinary text), making such attacks more likely to succeed. | |
307 | %|SUFFIX | |
308 | like %g, but if -pipe is in effect, expands simply to "-". | |
309 | %mSUFFIX | |
310 | like %g, but if -pipe is in effect, expands to nothing. (We have both | |
311 | %| and %m to accommodate differences between system assemblers; see | |
312 | the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.) | |
313 | %uSUFFIX | |
314 | like %g, but generates a new temporary file name even if %uSUFFIX | |
315 | was already seen. | |
316 | %USUFFIX | |
317 | substitutes the last file name generated with %uSUFFIX, generating a | |
318 | new one if there is no such last file name. In the absence of any | |
319 | %uSUFFIX, this is just like %gSUFFIX, except they don't share | |
320 | the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s' | |
321 | would involve the generation of two distinct file names, one | |
322 | for each `%g.s' and another for each `%U.s'. Previously, %U was | |
323 | simply substituted with a file name chosen for the previous %u, | |
324 | without regard to any appended suffix. | |
325 | %jSUFFIX | |
326 | substitutes the name of the HOST_BIT_BUCKET, if any, and if it is | |
327 | writable, and if save-temps is off; otherwise, substitute the name | |
328 | of a temporary file, just like %u. This temporary file is not | |
329 | meant for communication between processes, but rather as a junk | |
330 | disposal mechanism. | |
331 | %.SUFFIX | |
332 | substitutes .SUFFIX for the suffixes of a matched switch's args when | |
333 | it is subsequently output with %*. SUFFIX is terminated by the next | |
334 | space or %. | |
335 | %d marks the argument containing or following the %d as a | |
336 | temporary file name, so that that file will be deleted if GCC exits | |
337 | successfully. Unlike %g, this contributes no text to the argument. | |
338 | %w marks the argument containing or following the %w as the | |
339 | "output file" of this compilation. This puts the argument | |
340 | into the sequence of arguments that %o will substitute later. | |
341 | %V indicates that this compilation produces no "output file". | |
342 | %W{...} | |
343 | like %{...} but mark last argument supplied within | |
344 | as a file to be deleted on failure. | |
345 | %o substitutes the names of all the output files, with spaces | |
346 | automatically placed around them. You should write spaces | |
347 | around the %o as well or the results are undefined. | |
348 | %o is for use in the specs for running the linker. | |
349 | Input files whose names have no recognized suffix are not compiled | |
350 | at all, but they are included among the output files, so they will | |
351 | be linked. | |
352 | %O substitutes the suffix for object files. Note that this is | |
353 | handled specially when it immediately follows %g, %u, or %U | |
354 | (with or without a suffix argument) because of the need for | |
355 | those to form complete file names. The handling is such that | |
356 | %O is treated exactly as if it had already been substituted, | |
357 | except that %g, %u, and %U do not currently support additional | |
358 | SUFFIX characters following %O as they would following, for | |
359 | example, `.o'. | |
360 | %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot | |
361 | (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH | |
362 | and -B options) and -imultilib as necessary. | |
363 | %s current argument is the name of a library or startup file of some sort. | |
364 | Search for that file in a standard list of directories | |
365 | and substitute the full name found. | |
366 | %eSTR Print STR as an error message. STR is terminated by a newline. | |
367 | Use this when inconsistent options are detected. | |
368 | %nSTR Print STR as a notice. STR is terminated by a newline. | |
369 | %x{OPTION} Accumulate an option for %X. | |
370 | %X Output the accumulated linker options specified by compilations. | |
371 | %Y Output the accumulated assembler options specified by compilations. | |
372 | %Z Output the accumulated preprocessor options specified by compilations. | |
373 | %a process ASM_SPEC as a spec. | |
374 | This allows config.h to specify part of the spec for running as. | |
375 | %A process ASM_FINAL_SPEC as a spec. A capital A is actually | |
376 | used here. This can be used to run a post-processor after the | |
377 | assembler has done its job. | |
378 | %D Dump out a -L option for each directory in startfile_prefixes. | |
379 | If multilib_dir is set, extra entries are generated with it affixed. | |
380 | %l process LINK_SPEC as a spec. | |
381 | %L process LIB_SPEC as a spec. | |
382 | %G process LIBGCC_SPEC as a spec. | |
383 | %R Output the concatenation of target_system_root and | |
384 | target_sysroot_suffix. | |
385 | %S process STARTFILE_SPEC as a spec. A capital S is actually used here. | |
386 | %E process ENDFILE_SPEC as a spec. A capital E is actually used here. | |
387 | %C process CPP_SPEC as a spec. | |
388 | %1 process CC1_SPEC as a spec. | |
389 | %2 process CC1PLUS_SPEC as a spec. | |
390 | %* substitute the variable part of a matched option. (See below.) | |
391 | Note that each comma in the substituted string is replaced by | |
392 | a single space. | |
393 | %<S remove all occurrences of -S from the command line. | |
394 | Note - this command is position dependent. % commands in the | |
395 | spec string before this one will see -S, % commands in the | |
396 | spec string after this one will not. | |
397 | %>S Similar to "%<S", but keep it in the GCC command line. | |
398 | %<S* remove all occurrences of all switches beginning with -S from the | |
399 | command line. | |
400 | %:function(args) | |
401 | Call the named function FUNCTION, passing it ARGS. ARGS is | |
402 | first processed as a nested spec string, then split into an | |
403 | argument vector in the usual fashion. The function returns | |
404 | a string which is processed as if it had appeared literally | |
405 | as part of the current spec. | |
406 | %{S} substitutes the -S switch, if that switch was given to GCC. | |
407 | If that switch was not specified, this substitutes nothing. | |
408 | Here S is a metasyntactic variable. | |
409 | %{S*} substitutes all the switches specified to GCC whose names start | |
410 | with -S. This is used for -o, -I, etc; switches that take | |
411 | arguments. GCC considers `-o foo' as being one switch whose | |
412 | name starts with `o'. %{o*} would substitute this text, | |
413 | including the space; thus, two arguments would be generated. | |
414 | %{S*&T*} likewise, but preserve order of S and T options (the order | |
415 | of S and T in the spec is not significant). Can be any number | |
416 | of ampersand-separated variables; for each the wild card is | |
417 | optional. Useful for CPP as %{D*&U*&A*}. | |
418 | ||
419 | %{S:X} substitutes X, if the -S switch was given to GCC. | |
420 | %{!S:X} substitutes X, if the -S switch was NOT given to GCC. | |
421 | %{S*:X} substitutes X if one or more switches whose names start | |
422 | with -S was given to GCC. Normally X is substituted only | |
423 | once, no matter how many such switches appeared. However, | |
424 | if %* appears somewhere in X, then X will be substituted | |
425 | once for each matching switch, with the %* replaced by the | |
426 | part of that switch that matched the '*'. | |
427 | %{.S:X} substitutes X, if processing a file with suffix S. | |
428 | %{!.S:X} substitutes X, if NOT processing a file with suffix S. | |
429 | %{,S:X} substitutes X, if processing a file which will use spec S. | |
430 | %{!,S:X} substitutes X, if NOT processing a file which will use spec S. | |
431 | ||
432 | %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be | |
433 | combined with '!', '.', ',', and '*' as above binding stronger | |
434 | than the OR. | |
435 | If %* appears in X, all of the alternatives must be starred, and | |
436 | only the first matching alternative is substituted. | |
437 | %{S:X; if S was given to GCC, substitutes X; | |
438 | T:Y; else if T was given to GCC, substitutes Y; | |
439 | :D} else substitutes D. There can be as many clauses as you need. | |
440 | This may be combined with '.', '!', ',', '|', and '*' as above. | |
441 | ||
442 | %(Spec) processes a specification defined in a specs file as *Spec: | |
443 | ||
444 | The conditional text X in a %{S:X} or similar construct may contain | |
445 | other nested % constructs or spaces, or even newlines. They are | |
446 | processed as usual, as described above. Trailing white space in X is | |
447 | ignored. White space may also appear anywhere on the left side of the | |
448 | colon in these constructs, except between . or * and the corresponding | |
449 | word. | |
450 | ||
451 | The -O, -f, -m, and -W switches are handled specifically in these | |
452 | constructs. If another value of -O or the negated form of a -f, -m, or | |
453 | -W switch is found later in the command line, the earlier switch | |
454 | value is ignored, except with {S*} where S is just one letter; this | |
455 | passes all matching options. | |
456 | ||
457 | The character | at the beginning of the predicate text is used to indicate | |
458 | that a command should be piped to the following command, but only if -pipe | |
459 | is specified. | |
460 | ||
461 | Note that it is built into GCC which switches take arguments and which | |
462 | do not. You might think it would be useful to generalize this to | |
463 | allow each compiler's spec to say which switches take arguments. But | |
464 | this cannot be done in a consistent fashion. GCC cannot even decide | |
465 | which input files have been specified without knowing which switches | |
466 | take arguments, and it must know which input files to compile in order | |
467 | to tell which compilers to run. | |
468 | ||
469 | GCC also knows implicitly that arguments starting in `-l' are to be | |
470 | treated as compiler output files, and passed to the linker in their | |
471 | proper position among the other output files. */ | |
472 | \f | |
473 | /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */ | |
474 | ||
475 | /* config.h can define ASM_SPEC to provide extra args to the assembler | |
476 | or extra switch-translations. */ | |
477 | #ifndef ASM_SPEC | |
478 | #define ASM_SPEC "" | |
479 | #endif | |
480 | ||
481 | /* config.h can define ASM_FINAL_SPEC to run a post processor after | |
482 | the assembler has run. */ | |
483 | #ifndef ASM_FINAL_SPEC | |
484 | #define ASM_FINAL_SPEC "" | |
485 | #endif | |
486 | ||
487 | /* config.h can define CPP_SPEC to provide extra args to the C preprocessor | |
488 | or extra switch-translations. */ | |
489 | #ifndef CPP_SPEC | |
490 | #define CPP_SPEC "" | |
491 | #endif | |
492 | ||
493 | /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus | |
494 | or extra switch-translations. */ | |
495 | #ifndef CC1_SPEC | |
496 | #define CC1_SPEC "" | |
497 | #endif | |
498 | ||
499 | /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus | |
500 | or extra switch-translations. */ | |
501 | #ifndef CC1PLUS_SPEC | |
502 | #define CC1PLUS_SPEC "" | |
503 | #endif | |
504 | ||
505 | /* config.h can define LINK_SPEC to provide extra args to the linker | |
506 | or extra switch-translations. */ | |
507 | #ifndef LINK_SPEC | |
508 | #define LINK_SPEC "" | |
509 | #endif | |
510 | ||
511 | /* config.h can define LIB_SPEC to override the default libraries. */ | |
512 | #ifndef LIB_SPEC | |
513 | #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}" | |
514 | #endif | |
515 | ||
516 | /* mudflap specs */ | |
517 | #ifndef MFWRAP_SPEC | |
518 | /* XXX: valid only for GNU ld */ | |
519 | /* XXX: should exactly match hooks provided by libmudflap.a */ | |
520 | #define MFWRAP_SPEC " %{static: %{fmudflap|fmudflapth: \ | |
521 | --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\ | |
522 | --wrap=mmap --wrap=mmap64 --wrap=munmap --wrap=alloca\ | |
523 | } %{fmudflapth: --wrap=pthread_create\ | |
524 | }} %{fmudflap|fmudflapth: --wrap=main}" | |
525 | #endif | |
526 | #ifndef MFLIB_SPEC | |
527 | #define MFLIB_SPEC "%{fmudflap|fmudflapth: -export-dynamic}" | |
528 | #endif | |
529 | ||
530 | /* When using -fsplit-stack we need to wrap pthread_create, in order | |
531 | to initialize the stack guard. We always use wrapping, rather than | |
532 | shared library ordering, and we keep the wrapper function in | |
533 | libgcc. This is not yet a real spec, though it could become one; | |
534 | it is currently just stuffed into LINK_SPEC. FIXME: This wrapping | |
535 | only works with GNU ld and gold. FIXME: This is incompatible with | |
536 | -fmudflap when linking statically, which wants to do its own | |
537 | wrapping. */ | |
538 | #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}" | |
539 | ||
540 | /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is | |
541 | included. */ | |
542 | #ifndef LIBGCC_SPEC | |
543 | #if defined(REAL_LIBGCC_SPEC) | |
544 | #define LIBGCC_SPEC REAL_LIBGCC_SPEC | |
545 | #elif defined(LINK_LIBGCC_SPECIAL_1) | |
546 | /* Have gcc do the search for libgcc.a. */ | |
547 | #define LIBGCC_SPEC "libgcc.a%s" | |
548 | #else | |
549 | #define LIBGCC_SPEC "-lgcc" | |
550 | #endif | |
551 | #endif | |
552 | ||
553 | /* config.h can define STARTFILE_SPEC to override the default crt0 files. */ | |
554 | #ifndef STARTFILE_SPEC | |
555 | #define STARTFILE_SPEC \ | |
556 | "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}" | |
557 | #endif | |
558 | ||
559 | /* config.h can define ENDFILE_SPEC to override the default crtn files. */ | |
560 | #ifndef ENDFILE_SPEC | |
561 | #define ENDFILE_SPEC "" | |
562 | #endif | |
563 | ||
564 | #ifndef LINKER_NAME | |
565 | #define LINKER_NAME "collect2" | |
566 | #endif | |
567 | ||
568 | #ifdef HAVE_AS_DEBUG_PREFIX_MAP | |
569 | #define ASM_MAP " %{fdebug-prefix-map=*:--debug-prefix-map %*}" | |
570 | #else | |
571 | #define ASM_MAP "" | |
572 | #endif | |
573 | ||
574 | /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g' | |
575 | to the assembler. */ | |
576 | #ifndef ASM_DEBUG_SPEC | |
577 | # if defined(DBX_DEBUGGING_INFO) && defined(DWARF2_DEBUGGING_INFO) \ | |
578 | && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) && defined(HAVE_AS_GSTABS_DEBUG_FLAG) | |
579 | # define ASM_DEBUG_SPEC \ | |
580 | (PREFERRED_DEBUGGING_TYPE == DBX_DEBUG \ | |
581 | ? "%{!g0:%{gdwarf-2*:--gdwarf2}%{!gdwarf-2*:%{g*:--gstabs}}}" ASM_MAP \ | |
582 | : "%{!g0:%{gstabs*:--gstabs}%{!gstabs*:%{g*:--gdwarf2}}}" ASM_MAP) | |
583 | # else | |
584 | # if defined(DBX_DEBUGGING_INFO) && defined(HAVE_AS_GSTABS_DEBUG_FLAG) | |
585 | # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gstabs}}" ASM_MAP | |
586 | # endif | |
587 | # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG) | |
588 | # define ASM_DEBUG_SPEC "%{g*:%{!g0:--gdwarf2}}" ASM_MAP | |
589 | # endif | |
590 | # endif | |
591 | #endif | |
592 | #ifndef ASM_DEBUG_SPEC | |
593 | # define ASM_DEBUG_SPEC "" | |
594 | #endif | |
595 | ||
596 | /* Here is the spec for running the linker, after compiling all files. */ | |
597 | ||
598 | /* This is overridable by the target in case they need to specify the | |
599 | -lgcc and -lc order specially, yet not require them to override all | |
600 | of LINK_COMMAND_SPEC. */ | |
601 | #ifndef LINK_GCC_C_SEQUENCE_SPEC | |
602 | #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G" | |
603 | #endif | |
604 | ||
605 | #ifndef LINK_SSP_SPEC | |
606 | #ifdef TARGET_LIBC_PROVIDES_SSP | |
607 | #define LINK_SSP_SPEC "%{fstack-protector:}" | |
608 | #else | |
609 | #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}" | |
610 | #endif | |
611 | #endif | |
612 | ||
613 | #ifndef LINK_PIE_SPEC | |
614 | #ifdef HAVE_LD_PIE | |
615 | #define LINK_PIE_SPEC "%{pie:-pie} " | |
616 | #else | |
617 | #define LINK_PIE_SPEC "%{pie:} " | |
618 | #endif | |
619 | #endif | |
620 | ||
621 | #ifndef LINK_BUILDID_SPEC | |
622 | # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID) | |
623 | # define LINK_BUILDID_SPEC "%{!r:--build-id} " | |
624 | # endif | |
625 | #endif | |
626 | ||
627 | /* Conditional to test whether the LTO plugin is used or not. | |
628 | FIXME: For slim LTO we will need to enable plugin unconditionally. This | |
629 | still cause problems with PLUGIN_LD != LD and when plugin is built but | |
630 | not useable. For GCC 4.6 we don't support slim LTO and thus we can enable | |
631 | plugin only when LTO is enabled. We still honor explicit | |
632 | -fuse-linker-plugin if the linker used understands -plugin. */ | |
633 | ||
634 | /* The linker has some plugin support. */ | |
635 | #if HAVE_LTO_PLUGIN > 0 | |
636 | /* The linker used has full plugin support, use LTO plugin by default. */ | |
637 | #if HAVE_LTO_PLUGIN == 2 | |
638 | #define PLUGIN_COND "!fno-use-linker-plugin:%{flto|flto=*|fuse-linker-plugin" | |
639 | #define PLUGIN_COND_CLOSE "}" | |
640 | #else | |
641 | /* The linker used has limited plugin support, use LTO plugin with explicit | |
642 | -fuse-linker-plugin. */ | |
643 | #define PLUGIN_COND "fuse-linker-plugin" | |
644 | #define PLUGIN_COND_CLOSE "" | |
645 | #endif | |
646 | #define LINK_PLUGIN_SPEC \ | |
647 | "%{"PLUGIN_COND": \ | |
648 | -plugin %(linker_plugin_file) \ | |
649 | -plugin-opt=%(lto_wrapper) \ | |
650 | -plugin-opt=-fresolution=%u.res \ | |
651 | %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \ | |
652 | }"PLUGIN_COND_CLOSE | |
653 | #else | |
654 | /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */ | |
655 | #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\ | |
656 | %e-fuse-linker-plugin is not supported in this configuration}" | |
657 | #endif | |
658 | ||
659 | ||
660 | /* -u* was put back because both BSD and SysV seem to support it. */ | |
661 | /* %{static:} simply prevents an error message if the target machine | |
662 | doesn't handle -static. */ | |
663 | /* We want %{T*} after %{L*} and %D so that it can be used to specify linker | |
664 | scripts which exist in user specified directories, or in standard | |
665 | directories. */ | |
666 | /* We pass any -flto flags on to the linker, which is expected | |
667 | to understand them. In practice, this means it had better be collect2. */ | |
668 | /* %{e*} includes -export-dynamic; see comment in common.opt. */ | |
669 | #ifndef LINK_COMMAND_SPEC | |
670 | #define LINK_COMMAND_SPEC "\ | |
671 | %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\ | |
672 | %(linker) " \ | |
673 | LINK_PLUGIN_SPEC \ | |
674 | "%{flto|flto=*:%<fcompare-debug*} \ | |
675 | %{flto} %{flto=*} %l " LINK_PIE_SPEC \ | |
676 | "%X %{o*} %{e*} %{N} %{n} %{r}\ | |
677 | %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}\ | |
678 | %{static:} %{L*} %(mfwrap) %(link_libgcc) %o\ | |
679 | %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\ | |
680 | %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\ | |
681 | %(mflib) " STACK_SPLIT_SPEC "\ | |
682 | %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\ | |
683 | %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\ | |
684 | %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}" | |
685 | #endif | |
686 | ||
687 | #ifndef LINK_LIBGCC_SPEC | |
688 | /* Generate -L options for startfile prefix list. */ | |
689 | # define LINK_LIBGCC_SPEC "%D" | |
690 | #endif | |
691 | ||
692 | #ifndef STARTFILE_PREFIX_SPEC | |
693 | # define STARTFILE_PREFIX_SPEC "" | |
694 | #endif | |
695 | ||
696 | #ifndef SYSROOT_SPEC | |
697 | # define SYSROOT_SPEC "--sysroot=%R" | |
698 | #endif | |
699 | ||
700 | #ifndef SYSROOT_SUFFIX_SPEC | |
701 | # define SYSROOT_SUFFIX_SPEC "" | |
702 | #endif | |
703 | ||
704 | #ifndef SYSROOT_HEADERS_SUFFIX_SPEC | |
705 | # define SYSROOT_HEADERS_SUFFIX_SPEC "" | |
706 | #endif | |
707 | ||
708 | static const char *asm_debug; | |
709 | static const char *cpp_spec = CPP_SPEC; | |
710 | static const char *cc1_spec = CC1_SPEC; | |
711 | static const char *cc1plus_spec = CC1PLUS_SPEC; | |
712 | static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC; | |
713 | static const char *link_ssp_spec = LINK_SSP_SPEC; | |
714 | static const char *asm_spec = ASM_SPEC; | |
715 | static const char *asm_final_spec = ASM_FINAL_SPEC; | |
716 | static const char *link_spec = LINK_SPEC; | |
717 | static const char *lib_spec = LIB_SPEC; | |
718 | static const char *mfwrap_spec = MFWRAP_SPEC; | |
719 | static const char *mflib_spec = MFLIB_SPEC; | |
720 | static const char *link_gomp_spec = ""; | |
721 | static const char *libgcc_spec = LIBGCC_SPEC; | |
722 | static const char *endfile_spec = ENDFILE_SPEC; | |
723 | static const char *startfile_spec = STARTFILE_SPEC; | |
724 | static const char *linker_name_spec = LINKER_NAME; | |
725 | static const char *linker_plugin_file_spec = ""; | |
726 | static const char *lto_wrapper_spec = ""; | |
727 | static const char *lto_gcc_spec = ""; | |
728 | static const char *link_command_spec = LINK_COMMAND_SPEC; | |
729 | static const char *link_libgcc_spec = LINK_LIBGCC_SPEC; | |
730 | static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC; | |
731 | static const char *sysroot_spec = SYSROOT_SPEC; | |
732 | static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC; | |
733 | static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC; | |
734 | static const char *self_spec = ""; | |
735 | ||
736 | /* Standard options to cpp, cc1, and as, to reduce duplication in specs. | |
737 | There should be no need to override these in target dependent files, | |
738 | but we need to copy them to the specs file so that newer versions | |
739 | of the GCC driver can correctly drive older tool chains with the | |
740 | appropriate -B options. */ | |
741 | ||
742 | /* When cpplib handles traditional preprocessing, get rid of this, and | |
743 | call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so | |
744 | that we default the front end language better. */ | |
745 | static const char *trad_capable_cpp = | |
746 | "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}"; | |
747 | ||
748 | /* We don't wrap .d files in %W{} since a missing .d file, and | |
749 | therefore no dependency entry, confuses make into thinking a .o | |
750 | file that happens to exist is up-to-date. */ | |
751 | static const char *cpp_unique_options = | |
752 | "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %{I*&F*} %{P} %I\ | |
753 | %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\ | |
754 | %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\ | |
755 | %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\ | |
756 | %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\ | |
757 | %{remap} %{g3|ggdb3|gstabs3|gcoff3|gxcoff3|gvms3:-dD}\ | |
758 | %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\ | |
759 | %{H} %C %{D*&U*&A*} %{i*} %Z %i\ | |
760 | %{fmudflap:-D_MUDFLAP -include mf-runtime.h}\ | |
761 | %{fmudflapth:-D_MUDFLAP -D_MUDFLAPTH -include mf-runtime.h}\ | |
762 | %{E|M|MM:%W{o*}}"; | |
763 | ||
764 | /* This contains cpp options which are common with cc1_options and are passed | |
765 | only when preprocessing only to avoid duplication. We pass the cc1 spec | |
766 | options to the preprocessor so that it the cc1 spec may manipulate | |
767 | options used to set target flags. Those special target flags settings may | |
768 | in turn cause preprocessor symbols to be defined specially. */ | |
769 | static const char *cpp_options = | |
770 | "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\ | |
771 | %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\ | |
772 | %{undef} %{save-temps*:-fpch-preprocess}"; | |
773 | ||
774 | /* This contains cpp options which are not passed when the preprocessor | |
775 | output will be used by another program. */ | |
776 | static const char *cpp_debug_options = "%{d*}"; | |
777 | ||
778 | /* NB: This is shared amongst all front-ends, except for Ada. */ | |
779 | static const char *cc1_options = | |
780 | "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\ | |
781 | %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\ | |
782 | %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*}\ | |
783 | %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)} \ | |
784 | %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}} \ | |
785 | %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\ | |
786 | %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\ | |
787 | %{Qn:-fno-ident} %{Qy:} %{-help:--help}\ | |
788 | %{-target-help:--target-help}\ | |
789 | %{-version:--version}\ | |
790 | %{-help=*:--help=%*}\ | |
791 | %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\ | |
792 | %{fsyntax-only:-o %j} %{-param*}\ | |
793 | %{fmudflap|fmudflapth:-fno-builtin -fno-merge-constants}\ | |
794 | %{coverage:-fprofile-arcs -ftest-coverage}"; | |
795 | ||
796 | static const char *asm_options = | |
797 | "%{-target-help:%:print-asm-header()} " | |
798 | #if HAVE_GNU_AS | |
799 | /* If GNU AS is used, then convert -w (no warnings), -I, and -v | |
800 | to the assembler equivalents. */ | |
801 | "%{v} %{w:-W} %{I*} " | |
802 | #endif | |
803 | "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}"; | |
804 | ||
805 | static const char *invoke_as = | |
806 | #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT | |
807 | "%{!fwpa:\ | |
808 | %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\ | |
809 | %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\ | |
810 | }"; | |
811 | #else | |
812 | "%{!fwpa:\ | |
813 | %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\ | |
814 | %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\ | |
815 | }"; | |
816 | #endif | |
817 | ||
818 | /* Some compilers have limits on line lengths, and the multilib_select | |
819 | and/or multilib_matches strings can be very long, so we build them at | |
820 | run time. */ | |
821 | static struct obstack multilib_obstack; | |
822 | static const char *multilib_select; | |
823 | static const char *multilib_matches; | |
824 | static const char *multilib_defaults; | |
825 | static const char *multilib_exclusions; | |
826 | ||
827 | /* Check whether a particular argument is a default argument. */ | |
828 | ||
829 | #ifndef MULTILIB_DEFAULTS | |
830 | #define MULTILIB_DEFAULTS { "" } | |
831 | #endif | |
832 | ||
833 | static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS; | |
834 | ||
835 | #ifndef DRIVER_SELF_SPECS | |
836 | #define DRIVER_SELF_SPECS "" | |
837 | #endif | |
838 | ||
839 | /* Adding -fopenmp should imply pthreads. This is particularly important | |
840 | for targets that use different start files and suchlike. */ | |
841 | #ifndef GOMP_SELF_SPECS | |
842 | #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}" | |
843 | #endif | |
844 | ||
845 | /* Likewise for -fgnu-tm. */ | |
846 | #ifndef GTM_SELF_SPECS | |
847 | #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}" | |
848 | #endif | |
849 | ||
850 | static const char *const driver_self_specs[] = { | |
851 | "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns", | |
852 | DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS, GTM_SELF_SPECS | |
853 | }; | |
854 | ||
855 | #ifndef OPTION_DEFAULT_SPECS | |
856 | #define OPTION_DEFAULT_SPECS { "", "" } | |
857 | #endif | |
858 | ||
859 | struct default_spec | |
860 | { | |
861 | const char *name; | |
862 | const char *spec; | |
863 | }; | |
864 | ||
865 | static const struct default_spec | |
866 | option_default_specs[] = { OPTION_DEFAULT_SPECS }; | |
867 | ||
868 | struct user_specs | |
869 | { | |
870 | struct user_specs *next; | |
871 | const char *filename; | |
872 | }; | |
873 | ||
874 | static struct user_specs *user_specs_head, *user_specs_tail; | |
875 | ||
876 | \f | |
877 | /* Record the mapping from file suffixes for compilation specs. */ | |
878 | ||
879 | struct compiler | |
880 | { | |
881 | const char *suffix; /* Use this compiler for input files | |
882 | whose names end in this suffix. */ | |
883 | ||
884 | const char *spec; /* To use this compiler, run this spec. */ | |
885 | ||
886 | const char *cpp_spec; /* If non-NULL, substitute this spec | |
887 | for `%C', rather than the usual | |
888 | cpp_spec. */ | |
889 | const int combinable; /* If nonzero, compiler can deal with | |
890 | multiple source files at once (IMA). */ | |
891 | const int needs_preprocessing; /* If nonzero, source files need to | |
892 | be run through a preprocessor. */ | |
893 | }; | |
894 | ||
895 | /* Pointer to a vector of `struct compiler' that gives the spec for | |
896 | compiling a file, based on its suffix. | |
897 | A file that does not end in any of these suffixes will be passed | |
898 | unchanged to the loader and nothing else will be done to it. | |
899 | ||
900 | An entry containing two 0s is used to terminate the vector. | |
901 | ||
902 | If multiple entries match a file, the last matching one is used. */ | |
903 | ||
904 | static struct compiler *compilers; | |
905 | ||
906 | /* Number of entries in `compilers', not counting the null terminator. */ | |
907 | ||
908 | static int n_compilers; | |
909 | ||
910 | /* The default list of file name suffixes and their compilation specs. */ | |
911 | ||
912 | static const struct compiler default_compilers[] = | |
913 | { | |
914 | /* Add lists of suffixes of known languages here. If those languages | |
915 | were not present when we built the driver, we will hit these copies | |
916 | and be given a more meaningful error than "file not used since | |
917 | linking is not done". */ | |
918 | {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0}, | |
919 | {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0}, | |
920 | {".mii", "#Objective-C++", 0, 0, 0}, | |
921 | {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0}, | |
922 | {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0}, | |
923 | {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0}, | |
924 | {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0}, | |
925 | {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0}, | |
926 | {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0}, | |
927 | {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0}, | |
928 | {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0}, | |
929 | {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0}, | |
930 | {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0}, | |
931 | {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0}, | |
932 | {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0}, | |
933 | {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0}, | |
934 | {".r", "#Ratfor", 0, 0, 0}, | |
935 | {".p", "#Pascal", 0, 0, 0}, {".pas", "#Pascal", 0, 0, 0}, | |
936 | {".java", "#Java", 0, 0, 0}, {".class", "#Java", 0, 0, 0}, | |
937 | {".zip", "#Java", 0, 0, 0}, {".jar", "#Java", 0, 0, 0}, | |
938 | {".go", "#Go", 0, 1, 0}, | |
939 | /* Next come the entries for C. */ | |
940 | {".c", "@c", 0, 0, 1}, | |
941 | {"@c", | |
942 | /* cc1 has an integrated ISO C preprocessor. We should invoke the | |
943 | external preprocessor if -save-temps is given. */ | |
944 | "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ | |
945 | %{!E:%{!M:%{!MM:\ | |
946 | %{traditional:\ | |
947 | %eGNU C no longer supports -traditional without -E}\ | |
948 | %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \ | |
949 | %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\ | |
950 | cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \ | |
951 | %(cc1_options)}\ | |
952 | %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\ | |
953 | cc1 %(cpp_unique_options) %(cc1_options)}}}\ | |
954 | %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1}, | |
955 | {"-", | |
956 | "%{!E:%e-E or -x required when input is from standard input}\ | |
957 | %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0}, | |
958 | {".h", "@c-header", 0, 0, 0}, | |
959 | {"@c-header", | |
960 | /* cc1 has an integrated ISO C preprocessor. We should invoke the | |
961 | external preprocessor if -save-temps is given. */ | |
962 | "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ | |
963 | %{!E:%{!M:%{!MM:\ | |
964 | %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \ | |
965 | %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\ | |
966 | cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \ | |
967 | %(cc1_options)\ | |
968 | %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\ | |
969 | %W{o*:--output-pch=%*}}%V}\ | |
970 | %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\ | |
971 | cc1 %(cpp_unique_options) %(cc1_options)\ | |
972 | %{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\ | |
973 | %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0}, | |
974 | {".i", "@cpp-output", 0, 0, 0}, | |
975 | {"@cpp-output", | |
976 | "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, | |
977 | {".s", "@assembler", 0, 0, 0}, | |
978 | {"@assembler", | |
979 | "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0}, | |
980 | {".sx", "@assembler-with-cpp", 0, 0, 0}, | |
981 | {".S", "@assembler-with-cpp", 0, 0, 0}, | |
982 | {"@assembler-with-cpp", | |
983 | #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT | |
984 | "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\ | |
985 | %{E|M|MM:%(cpp_debug_options)}\ | |
986 | %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\ | |
987 | as %(asm_debug) %(asm_options) %|.s %A }}}}" | |
988 | #else | |
989 | "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\ | |
990 | %{E|M|MM:%(cpp_debug_options)}\ | |
991 | %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\ | |
992 | as %(asm_debug) %(asm_options) %m.s %A }}}}" | |
993 | #endif | |
994 | , 0, 0, 0}, | |
995 | ||
996 | #include "specs.h" | |
997 | /* Mark end of table. */ | |
998 | {0, 0, 0, 0, 0} | |
999 | }; | |
1000 | ||
1001 | /* Number of elements in default_compilers, not counting the terminator. */ | |
1002 | ||
1003 | static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1; | |
1004 | ||
1005 | typedef char *char_p; /* For DEF_VEC_P. */ | |
1006 | DEF_VEC_P(char_p); | |
1007 | DEF_VEC_ALLOC_P(char_p,heap); | |
1008 | ||
1009 | /* A vector of options to give to the linker. | |
1010 | These options are accumulated by %x, | |
1011 | and substituted into the linker command with %X. */ | |
1012 | static VEC(char_p,heap) *linker_options; | |
1013 | ||
1014 | /* A vector of options to give to the assembler. | |
1015 | These options are accumulated by -Wa, | |
1016 | and substituted into the assembler command with %Y. */ | |
1017 | static VEC(char_p,heap) *assembler_options; | |
1018 | ||
1019 | /* A vector of options to give to the preprocessor. | |
1020 | These options are accumulated by -Wp, | |
1021 | and substituted into the preprocessor command with %Z. */ | |
1022 | static VEC(char_p,heap) *preprocessor_options; | |
1023 | \f | |
1024 | static char * | |
1025 | skip_whitespace (char *p) | |
1026 | { | |
1027 | while (1) | |
1028 | { | |
1029 | /* A fully-blank line is a delimiter in the SPEC file and shouldn't | |
1030 | be considered whitespace. */ | |
1031 | if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n') | |
1032 | return p + 1; | |
1033 | else if (*p == '\n' || *p == ' ' || *p == '\t') | |
1034 | p++; | |
1035 | else if (*p == '#') | |
1036 | { | |
1037 | while (*p != '\n') | |
1038 | p++; | |
1039 | p++; | |
1040 | } | |
1041 | else | |
1042 | break; | |
1043 | } | |
1044 | ||
1045 | return p; | |
1046 | } | |
1047 | /* Structures to keep track of prefixes to try when looking for files. */ | |
1048 | ||
1049 | struct prefix_list | |
1050 | { | |
1051 | const char *prefix; /* String to prepend to the path. */ | |
1052 | struct prefix_list *next; /* Next in linked list. */ | |
1053 | int require_machine_suffix; /* Don't use without machine_suffix. */ | |
1054 | /* 2 means try both machine_suffix and just_machine_suffix. */ | |
1055 | int priority; /* Sort key - priority within list. */ | |
1056 | int os_multilib; /* 1 if OS multilib scheme should be used, | |
1057 | 0 for GCC multilib scheme. */ | |
1058 | }; | |
1059 | ||
1060 | struct path_prefix | |
1061 | { | |
1062 | struct prefix_list *plist; /* List of prefixes to try */ | |
1063 | int max_len; /* Max length of a prefix in PLIST */ | |
1064 | const char *name; /* Name of this list (used in config stuff) */ | |
1065 | }; | |
1066 | ||
1067 | /* List of prefixes to try when looking for executables. */ | |
1068 | ||
1069 | static struct path_prefix exec_prefixes = { 0, 0, "exec" }; | |
1070 | ||
1071 | /* List of prefixes to try when looking for startup (crt0) files. */ | |
1072 | ||
1073 | static struct path_prefix startfile_prefixes = { 0, 0, "startfile" }; | |
1074 | ||
1075 | /* List of prefixes to try when looking for include files. */ | |
1076 | ||
1077 | static struct path_prefix include_prefixes = { 0, 0, "include" }; | |
1078 | ||
1079 | /* Suffix to attach to directories searched for commands. | |
1080 | This looks like `MACHINE/VERSION/'. */ | |
1081 | ||
1082 | static const char *machine_suffix = 0; | |
1083 | ||
1084 | /* Suffix to attach to directories searched for commands. | |
1085 | This is just `MACHINE/'. */ | |
1086 | ||
1087 | static const char *just_machine_suffix = 0; | |
1088 | ||
1089 | /* Adjusted value of GCC_EXEC_PREFIX envvar. */ | |
1090 | ||
1091 | static const char *gcc_exec_prefix; | |
1092 | ||
1093 | /* Adjusted value of standard_libexec_prefix. */ | |
1094 | ||
1095 | static const char *gcc_libexec_prefix; | |
1096 | ||
1097 | /* Default prefixes to attach to command names. */ | |
1098 | ||
1099 | #ifndef STANDARD_STARTFILE_PREFIX_1 | |
1100 | #define STANDARD_STARTFILE_PREFIX_1 "/lib/" | |
1101 | #endif | |
1102 | #ifndef STANDARD_STARTFILE_PREFIX_2 | |
1103 | #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/" | |
1104 | #endif | |
1105 | ||
1106 | #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */ | |
1107 | #undef MD_EXEC_PREFIX | |
1108 | #undef MD_STARTFILE_PREFIX | |
1109 | #undef MD_STARTFILE_PREFIX_1 | |
1110 | #endif | |
1111 | ||
1112 | /* If no prefixes defined, use the null string, which will disable them. */ | |
1113 | #ifndef MD_EXEC_PREFIX | |
1114 | #define MD_EXEC_PREFIX "" | |
1115 | #endif | |
1116 | #ifndef MD_STARTFILE_PREFIX | |
1117 | #define MD_STARTFILE_PREFIX "" | |
1118 | #endif | |
1119 | #ifndef MD_STARTFILE_PREFIX_1 | |
1120 | #define MD_STARTFILE_PREFIX_1 "" | |
1121 | #endif | |
1122 | ||
1123 | /* These directories are locations set at configure-time based on the | |
1124 | --prefix option provided to configure. Their initializers are | |
1125 | defined in Makefile.in. These paths are not *directly* used when | |
1126 | gcc_exec_prefix is set because, in that case, we know where the | |
1127 | compiler has been installed, and use paths relative to that | |
1128 | location instead. */ | |
1129 | static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX; | |
1130 | static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX; | |
1131 | static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX; | |
1132 | static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX; | |
1133 | ||
1134 | /* For native compilers, these are well-known paths containing | |
1135 | components that may be provided by the system. For cross | |
1136 | compilers, these paths are not used. */ | |
1137 | static const char *md_exec_prefix = MD_EXEC_PREFIX; | |
1138 | static const char *md_startfile_prefix = MD_STARTFILE_PREFIX; | |
1139 | static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1; | |
1140 | static const char *const standard_startfile_prefix_1 | |
1141 | = STANDARD_STARTFILE_PREFIX_1; | |
1142 | static const char *const standard_startfile_prefix_2 | |
1143 | = STANDARD_STARTFILE_PREFIX_2; | |
1144 | ||
1145 | /* A relative path to be used in finding the location of tools | |
1146 | relative to the driver. */ | |
1147 | static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX; | |
1148 | ||
1149 | /* Subdirectory to use for locating libraries. Set by | |
1150 | set_multilib_dir based on the compilation options. */ | |
1151 | ||
1152 | static const char *multilib_dir; | |
1153 | ||
1154 | /* Subdirectory to use for locating libraries in OS conventions. Set by | |
1155 | set_multilib_dir based on the compilation options. */ | |
1156 | ||
1157 | static const char *multilib_os_dir; | |
5ce9237c JM |
1158 | |
1159 | /* Subdirectory to use for locating libraries in multiarch conventions. Set by | |
1160 | set_multilib_dir based on the compilation options. */ | |
1161 | ||
1162 | static const char *multiarch_dir; | |
e4b17023 JM |
1163 | \f |
1164 | /* Structure to keep track of the specs that have been defined so far. | |
1165 | These are accessed using %(specname) in a compiler or link | |
1166 | spec. */ | |
1167 | ||
1168 | struct spec_list | |
1169 | { | |
1170 | /* The following 2 fields must be first */ | |
1171 | /* to allow EXTRA_SPECS to be initialized */ | |
1172 | const char *name; /* name of the spec. */ | |
1173 | const char *ptr; /* available ptr if no static pointer */ | |
1174 | ||
1175 | /* The following fields are not initialized */ | |
1176 | /* by EXTRA_SPECS */ | |
1177 | const char **ptr_spec; /* pointer to the spec itself. */ | |
1178 | struct spec_list *next; /* Next spec in linked list. */ | |
1179 | int name_len; /* length of the name */ | |
1180 | int alloc_p; /* whether string was allocated */ | |
1181 | }; | |
1182 | ||
1183 | #define INIT_STATIC_SPEC(NAME,PTR) \ | |
1184 | { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, 0 } | |
1185 | ||
1186 | /* List of statically defined specs. */ | |
1187 | static struct spec_list static_specs[] = | |
1188 | { | |
1189 | INIT_STATIC_SPEC ("asm", &asm_spec), | |
1190 | INIT_STATIC_SPEC ("asm_debug", &asm_debug), | |
1191 | INIT_STATIC_SPEC ("asm_final", &asm_final_spec), | |
1192 | INIT_STATIC_SPEC ("asm_options", &asm_options), | |
1193 | INIT_STATIC_SPEC ("invoke_as", &invoke_as), | |
1194 | INIT_STATIC_SPEC ("cpp", &cpp_spec), | |
1195 | INIT_STATIC_SPEC ("cpp_options", &cpp_options), | |
1196 | INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options), | |
1197 | INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options), | |
1198 | INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp), | |
1199 | INIT_STATIC_SPEC ("cc1", &cc1_spec), | |
1200 | INIT_STATIC_SPEC ("cc1_options", &cc1_options), | |
1201 | INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec), | |
1202 | INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec), | |
1203 | INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec), | |
1204 | INIT_STATIC_SPEC ("endfile", &endfile_spec), | |
1205 | INIT_STATIC_SPEC ("link", &link_spec), | |
1206 | INIT_STATIC_SPEC ("lib", &lib_spec), | |
1207 | INIT_STATIC_SPEC ("mfwrap", &mfwrap_spec), | |
1208 | INIT_STATIC_SPEC ("mflib", &mflib_spec), | |
1209 | INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec), | |
1210 | INIT_STATIC_SPEC ("libgcc", &libgcc_spec), | |
1211 | INIT_STATIC_SPEC ("startfile", &startfile_spec), | |
1212 | INIT_STATIC_SPEC ("cross_compile", &cross_compile), | |
1213 | INIT_STATIC_SPEC ("version", &compiler_version), | |
1214 | INIT_STATIC_SPEC ("multilib", &multilib_select), | |
1215 | INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults), | |
1216 | INIT_STATIC_SPEC ("multilib_extra", &multilib_extra), | |
1217 | INIT_STATIC_SPEC ("multilib_matches", &multilib_matches), | |
1218 | INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions), | |
1219 | INIT_STATIC_SPEC ("multilib_options", &multilib_options), | |
1220 | INIT_STATIC_SPEC ("linker", &linker_name_spec), | |
1221 | INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec), | |
1222 | INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec), | |
1223 | INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec), | |
1224 | INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec), | |
1225 | INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix), | |
1226 | INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix), | |
1227 | INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1), | |
1228 | INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec), | |
1229 | INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec), | |
1230 | INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec), | |
1231 | INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec), | |
1232 | INIT_STATIC_SPEC ("self_spec", &self_spec), | |
1233 | }; | |
1234 | ||
1235 | #ifdef EXTRA_SPECS /* additional specs needed */ | |
1236 | /* Structure to keep track of just the first two args of a spec_list. | |
1237 | That is all that the EXTRA_SPECS macro gives us. */ | |
1238 | struct spec_list_1 | |
1239 | { | |
1240 | const char *const name; | |
1241 | const char *const ptr; | |
1242 | }; | |
1243 | ||
1244 | static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS }; | |
1245 | static struct spec_list *extra_specs = (struct spec_list *) 0; | |
1246 | #endif | |
1247 | ||
1248 | /* List of dynamically allocates specs that have been defined so far. */ | |
1249 | ||
1250 | static struct spec_list *specs = (struct spec_list *) 0; | |
1251 | \f | |
1252 | /* List of static spec functions. */ | |
1253 | ||
1254 | static const struct spec_function static_spec_functions[] = | |
1255 | { | |
1256 | { "getenv", getenv_spec_function }, | |
1257 | { "if-exists", if_exists_spec_function }, | |
1258 | { "if-exists-else", if_exists_else_spec_function }, | |
1259 | { "replace-outfile", replace_outfile_spec_function }, | |
1260 | { "remove-outfile", remove_outfile_spec_function }, | |
1261 | { "version-compare", version_compare_spec_function }, | |
1262 | { "include", include_spec_function }, | |
1263 | { "find-file", find_file_spec_function }, | |
1264 | { "find-plugindir", find_plugindir_spec_function }, | |
1265 | { "print-asm-header", print_asm_header_spec_function }, | |
1266 | { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function }, | |
1267 | { "compare-debug-self-opt", compare_debug_self_opt_spec_function }, | |
1268 | { "compare-debug-auxbase-opt", compare_debug_auxbase_opt_spec_function }, | |
1269 | { "pass-through-libs", pass_through_libs_spec_func }, | |
1270 | #ifdef EXTRA_SPEC_FUNCTIONS | |
1271 | EXTRA_SPEC_FUNCTIONS | |
1272 | #endif | |
1273 | { 0, 0 } | |
1274 | }; | |
1275 | ||
1276 | static int processing_spec_function; | |
1277 | \f | |
1278 | /* Add appropriate libgcc specs to OBSTACK, taking into account | |
1279 | various permutations of -shared-libgcc, -shared, and such. */ | |
1280 | ||
1281 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) | |
1282 | ||
1283 | #ifndef USE_LD_AS_NEEDED | |
1284 | #define USE_LD_AS_NEEDED 0 | |
1285 | #endif | |
1286 | ||
1287 | static void | |
1288 | init_gcc_specs (struct obstack *obstack, const char *shared_name, | |
1289 | const char *static_name, const char *eh_name) | |
1290 | { | |
1291 | char *buf; | |
1292 | ||
1293 | buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}" | |
1294 | "%{!static:%{!static-libgcc:" | |
1295 | #if USE_LD_AS_NEEDED | |
1296 | "%{!shared-libgcc:", | |
1297 | static_name, " --as-needed ", shared_name, " --no-as-needed" | |
1298 | "}" | |
1299 | "%{shared-libgcc:", | |
1300 | shared_name, "%{!shared: ", static_name, "}" | |
1301 | "}" | |
1302 | #else | |
1303 | "%{!shared:" | |
1304 | "%{!shared-libgcc:", static_name, " ", eh_name, "}" | |
1305 | "%{shared-libgcc:", shared_name, " ", static_name, "}" | |
1306 | "}" | |
1307 | #ifdef LINK_EH_SPEC | |
1308 | "%{shared:" | |
1309 | "%{shared-libgcc:", shared_name, "}" | |
1310 | "%{!shared-libgcc:", static_name, "}" | |
1311 | "}" | |
1312 | #else | |
1313 | "%{shared:", shared_name, "}" | |
1314 | #endif | |
1315 | #endif | |
1316 | "}}", NULL); | |
1317 | ||
1318 | obstack_grow (obstack, buf, strlen (buf)); | |
1319 | free (buf); | |
1320 | } | |
1321 | #endif /* ENABLE_SHARED_LIBGCC */ | |
1322 | ||
1323 | /* Initialize the specs lookup routines. */ | |
1324 | ||
1325 | static void | |
1326 | init_spec (void) | |
1327 | { | |
1328 | struct spec_list *next = (struct spec_list *) 0; | |
1329 | struct spec_list *sl = (struct spec_list *) 0; | |
1330 | int i; | |
1331 | ||
1332 | if (specs) | |
1333 | return; /* Already initialized. */ | |
1334 | ||
1335 | if (verbose_flag) | |
1336 | fnotice (stderr, "Using built-in specs.\n"); | |
1337 | ||
1338 | #ifdef EXTRA_SPECS | |
1339 | extra_specs = XCNEWVEC (struct spec_list, ARRAY_SIZE (extra_specs_1)); | |
1340 | ||
1341 | for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--) | |
1342 | { | |
1343 | sl = &extra_specs[i]; | |
1344 | sl->name = extra_specs_1[i].name; | |
1345 | sl->ptr = extra_specs_1[i].ptr; | |
1346 | sl->next = next; | |
1347 | sl->name_len = strlen (sl->name); | |
1348 | sl->ptr_spec = &sl->ptr; | |
1349 | next = sl; | |
1350 | } | |
1351 | #endif | |
1352 | ||
1353 | for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--) | |
1354 | { | |
1355 | sl = &static_specs[i]; | |
1356 | sl->next = next; | |
1357 | next = sl; | |
1358 | } | |
1359 | ||
1360 | #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC) | |
1361 | /* ??? If neither -shared-libgcc nor --static-libgcc was | |
1362 | seen, then we should be making an educated guess. Some proposed | |
1363 | heuristics for ELF include: | |
1364 | ||
1365 | (1) If "-Wl,--export-dynamic", then it's a fair bet that the | |
1366 | program will be doing dynamic loading, which will likely | |
1367 | need the shared libgcc. | |
1368 | ||
1369 | (2) If "-ldl", then it's also a fair bet that we're doing | |
1370 | dynamic loading. | |
1371 | ||
1372 | (3) For each ET_DYN we're linking against (either through -lfoo | |
1373 | or /some/path/foo.so), check to see whether it or one of | |
1374 | its dependencies depends on a shared libgcc. | |
1375 | ||
1376 | (4) If "-shared" | |
1377 | ||
1378 | If the runtime is fixed to look for program headers instead | |
1379 | of calling __register_frame_info at all, for each object, | |
1380 | use the shared libgcc if any EH symbol referenced. | |
1381 | ||
1382 | If crtstuff is fixed to not invoke __register_frame_info | |
1383 | automatically, for each object, use the shared libgcc if | |
1384 | any non-empty unwind section found. | |
1385 | ||
1386 | Doing any of this probably requires invoking an external program to | |
1387 | do the actual object file scanning. */ | |
1388 | { | |
1389 | const char *p = libgcc_spec; | |
1390 | int in_sep = 1; | |
1391 | ||
1392 | /* Transform the extant libgcc_spec into one that uses the shared libgcc | |
1393 | when given the proper command line arguments. */ | |
1394 | while (*p) | |
1395 | { | |
1396 | if (in_sep && *p == '-' && strncmp (p, "-lgcc", 5) == 0) | |
1397 | { | |
1398 | init_gcc_specs (&obstack, | |
1399 | "-lgcc_s" | |
1400 | #ifdef USE_LIBUNWIND_EXCEPTIONS | |
1401 | " -lunwind" | |
1402 | #endif | |
1403 | , | |
1404 | "-lgcc", | |
1405 | "-lgcc_eh" | |
1406 | #ifdef USE_LIBUNWIND_EXCEPTIONS | |
1407 | # ifdef HAVE_LD_STATIC_DYNAMIC | |
1408 | " %{!static:" LD_STATIC_OPTION "} -lunwind" | |
1409 | " %{!static:" LD_DYNAMIC_OPTION "}" | |
1410 | # else | |
1411 | " -lunwind" | |
1412 | # endif | |
1413 | #endif | |
1414 | ); | |
1415 | ||
1416 | p += 5; | |
1417 | in_sep = 0; | |
1418 | } | |
1419 | else if (in_sep && *p == 'l' && strncmp (p, "libgcc.a%s", 10) == 0) | |
1420 | { | |
1421 | /* Ug. We don't know shared library extensions. Hope that | |
1422 | systems that use this form don't do shared libraries. */ | |
1423 | init_gcc_specs (&obstack, | |
1424 | "-lgcc_s", | |
1425 | "libgcc.a%s", | |
1426 | "libgcc_eh.a%s" | |
1427 | #ifdef USE_LIBUNWIND_EXCEPTIONS | |
1428 | " -lunwind" | |
1429 | #endif | |
1430 | ); | |
1431 | p += 10; | |
1432 | in_sep = 0; | |
1433 | } | |
1434 | else | |
1435 | { | |
1436 | obstack_1grow (&obstack, *p); | |
1437 | in_sep = (*p == ' '); | |
1438 | p += 1; | |
1439 | } | |
1440 | } | |
1441 | ||
1442 | obstack_1grow (&obstack, '\0'); | |
1443 | libgcc_spec = XOBFINISH (&obstack, const char *); | |
1444 | } | |
1445 | #endif | |
1446 | #ifdef USE_AS_TRADITIONAL_FORMAT | |
1447 | /* Prepend "--traditional-format" to whatever asm_spec we had before. */ | |
1448 | { | |
1449 | static const char tf[] = "--traditional-format "; | |
1450 | obstack_grow (&obstack, tf, sizeof(tf) - 1); | |
1451 | obstack_grow0 (&obstack, asm_spec, strlen (asm_spec)); | |
1452 | asm_spec = XOBFINISH (&obstack, const char *); | |
1453 | } | |
1454 | #endif | |
1455 | ||
1456 | #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \ | |
1457 | defined LINKER_HASH_STYLE | |
1458 | # ifdef LINK_BUILDID_SPEC | |
1459 | /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */ | |
1460 | obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof(LINK_BUILDID_SPEC) - 1); | |
1461 | # endif | |
1462 | # ifdef LINK_EH_SPEC | |
1463 | /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */ | |
1464 | obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1); | |
1465 | # endif | |
1466 | # ifdef LINKER_HASH_STYLE | |
1467 | /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had | |
1468 | before. */ | |
1469 | { | |
1470 | static const char hash_style[] = "--hash-style="; | |
1471 | obstack_grow (&obstack, hash_style, sizeof(hash_style) - 1); | |
1472 | obstack_grow (&obstack, LINKER_HASH_STYLE, sizeof(LINKER_HASH_STYLE) - 1); | |
1473 | obstack_1grow (&obstack, ' '); | |
1474 | } | |
1475 | # endif | |
1476 | obstack_grow0 (&obstack, link_spec, strlen (link_spec)); | |
1477 | link_spec = XOBFINISH (&obstack, const char *); | |
1478 | #endif | |
1479 | ||
1480 | specs = sl; | |
1481 | } | |
1482 | \f | |
1483 | /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is | |
1484 | removed; If the spec starts with a + then SPEC is added to the end of the | |
1485 | current spec. */ | |
1486 | ||
1487 | static void | |
1488 | set_spec (const char *name, const char *spec) | |
1489 | { | |
1490 | struct spec_list *sl; | |
1491 | const char *old_spec; | |
1492 | int name_len = strlen (name); | |
1493 | int i; | |
1494 | ||
1495 | /* If this is the first call, initialize the statically allocated specs. */ | |
1496 | if (!specs) | |
1497 | { | |
1498 | struct spec_list *next = (struct spec_list *) 0; | |
1499 | for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--) | |
1500 | { | |
1501 | sl = &static_specs[i]; | |
1502 | sl->next = next; | |
1503 | next = sl; | |
1504 | } | |
1505 | specs = sl; | |
1506 | } | |
1507 | ||
1508 | /* See if the spec already exists. */ | |
1509 | for (sl = specs; sl; sl = sl->next) | |
1510 | if (name_len == sl->name_len && !strcmp (sl->name, name)) | |
1511 | break; | |
1512 | ||
1513 | if (!sl) | |
1514 | { | |
1515 | /* Not found - make it. */ | |
1516 | sl = XNEW (struct spec_list); | |
1517 | sl->name = xstrdup (name); | |
1518 | sl->name_len = name_len; | |
1519 | sl->ptr_spec = &sl->ptr; | |
1520 | sl->alloc_p = 0; | |
1521 | *(sl->ptr_spec) = ""; | |
1522 | sl->next = specs; | |
1523 | specs = sl; | |
1524 | } | |
1525 | ||
1526 | old_spec = *(sl->ptr_spec); | |
1527 | *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1])) | |
1528 | ? concat (old_spec, spec + 1, NULL) | |
1529 | : xstrdup (spec)); | |
1530 | ||
1531 | #ifdef DEBUG_SPECS | |
1532 | if (verbose_flag) | |
1533 | fnotice (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec)); | |
1534 | #endif | |
1535 | ||
1536 | /* Free the old spec. */ | |
1537 | if (old_spec && sl->alloc_p) | |
1538 | free (CONST_CAST(char *, old_spec)); | |
1539 | ||
1540 | sl->alloc_p = 1; | |
1541 | } | |
1542 | \f | |
1543 | /* Accumulate a command (program name and args), and run it. */ | |
1544 | ||
1545 | typedef const char *const_char_p; /* For DEF_VEC_P. */ | |
1546 | DEF_VEC_P(const_char_p); | |
1547 | DEF_VEC_ALLOC_P(const_char_p,heap); | |
1548 | ||
1549 | /* Vector of pointers to arguments in the current line of specifications. */ | |
1550 | ||
1551 | static VEC(const_char_p,heap) *argbuf; | |
1552 | ||
1553 | /* Position in the argbuf vector containing the name of the output file | |
1554 | (the value associated with the "-o" flag). */ | |
1555 | ||
1556 | static int have_o_argbuf_index = 0; | |
1557 | ||
1558 | /* Were the options -c, -S or -E passed. */ | |
1559 | static int have_c = 0; | |
1560 | ||
1561 | /* Was the option -o passed. */ | |
1562 | static int have_o = 0; | |
1563 | ||
1564 | /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated | |
1565 | temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for | |
1566 | it here. */ | |
1567 | ||
1568 | static struct temp_name { | |
1569 | const char *suffix; /* suffix associated with the code. */ | |
1570 | int length; /* strlen (suffix). */ | |
1571 | int unique; /* Indicates whether %g or %u/%U was used. */ | |
1572 | const char *filename; /* associated filename. */ | |
1573 | int filename_length; /* strlen (filename). */ | |
1574 | struct temp_name *next; | |
1575 | } *temp_names; | |
1576 | ||
1577 | /* Number of commands executed so far. */ | |
1578 | ||
1579 | static int execution_count; | |
1580 | ||
1581 | /* Number of commands that exited with a signal. */ | |
1582 | ||
1583 | static int signal_count; | |
1584 | \f | |
1585 | /* Allocate the argument vector. */ | |
1586 | ||
1587 | static void | |
1588 | alloc_args (void) | |
1589 | { | |
1590 | argbuf = VEC_alloc (const_char_p, heap, 10); | |
1591 | } | |
1592 | ||
1593 | /* Clear out the vector of arguments (after a command is executed). */ | |
1594 | ||
1595 | static void | |
1596 | clear_args (void) | |
1597 | { | |
1598 | VEC_truncate (const_char_p, argbuf, 0); | |
1599 | } | |
1600 | ||
1601 | /* Add one argument to the vector at the end. | |
1602 | This is done when a space is seen or at the end of the line. | |
1603 | If DELETE_ALWAYS is nonzero, the arg is a filename | |
1604 | and the file should be deleted eventually. | |
1605 | If DELETE_FAILURE is nonzero, the arg is a filename | |
1606 | and the file should be deleted if this compilation fails. */ | |
1607 | ||
1608 | static void | |
1609 | store_arg (const char *arg, int delete_always, int delete_failure) | |
1610 | { | |
1611 | VEC_safe_push (const_char_p, heap, argbuf, arg); | |
1612 | ||
1613 | if (strcmp (arg, "-o") == 0) | |
1614 | have_o_argbuf_index = VEC_length (const_char_p, argbuf); | |
1615 | if (delete_always || delete_failure) | |
1616 | { | |
1617 | const char *p; | |
1618 | /* If the temporary file we should delete is specified as | |
1619 | part of a joined argument extract the filename. */ | |
1620 | if (arg[0] == '-' | |
1621 | && (p = strrchr (arg, '='))) | |
1622 | arg = p + 1; | |
1623 | record_temp_file (arg, delete_always, delete_failure); | |
1624 | } | |
1625 | } | |
1626 | \f | |
1627 | /* Load specs from a file name named FILENAME, replacing occurrences of | |
1628 | various different types of line-endings, \r\n, \n\r and just \r, with | |
1629 | a single \n. */ | |
1630 | ||
1631 | static char * | |
1632 | load_specs (const char *filename) | |
1633 | { | |
1634 | int desc; | |
1635 | int readlen; | |
1636 | struct stat statbuf; | |
1637 | char *buffer; | |
1638 | char *buffer_p; | |
1639 | char *specs; | |
1640 | char *specs_p; | |
1641 | ||
1642 | if (verbose_flag) | |
1643 | fnotice (stderr, "Reading specs from %s\n", filename); | |
1644 | ||
1645 | /* Open and stat the file. */ | |
1646 | desc = open (filename, O_RDONLY, 0); | |
1647 | if (desc < 0) | |
1648 | pfatal_with_name (filename); | |
1649 | if (stat (filename, &statbuf) < 0) | |
1650 | pfatal_with_name (filename); | |
1651 | ||
1652 | /* Read contents of file into BUFFER. */ | |
1653 | buffer = XNEWVEC (char, statbuf.st_size + 1); | |
1654 | readlen = read (desc, buffer, (unsigned) statbuf.st_size); | |
1655 | if (readlen < 0) | |
1656 | pfatal_with_name (filename); | |
1657 | buffer[readlen] = 0; | |
1658 | close (desc); | |
1659 | ||
1660 | specs = XNEWVEC (char, readlen + 1); | |
1661 | specs_p = specs; | |
1662 | for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++) | |
1663 | { | |
1664 | int skip = 0; | |
1665 | char c = *buffer_p; | |
1666 | if (c == '\r') | |
1667 | { | |
1668 | if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */ | |
1669 | skip = 1; | |
1670 | else if (*(buffer_p + 1) == '\n') /* \r\n */ | |
1671 | skip = 1; | |
1672 | else /* \r */ | |
1673 | c = '\n'; | |
1674 | } | |
1675 | if (! skip) | |
1676 | *specs_p++ = c; | |
1677 | } | |
1678 | *specs_p = '\0'; | |
1679 | ||
1680 | free (buffer); | |
1681 | return (specs); | |
1682 | } | |
1683 | ||
1684 | /* Read compilation specs from a file named FILENAME, | |
1685 | replacing the default ones. | |
1686 | ||
1687 | A suffix which starts with `*' is a definition for | |
1688 | one of the machine-specific sub-specs. The "suffix" should be | |
1689 | *asm, *cc1, *cpp, *link, *startfile, etc. | |
1690 | The corresponding spec is stored in asm_spec, etc., | |
1691 | rather than in the `compilers' vector. | |
1692 | ||
1693 | Anything invalid in the file is a fatal error. */ | |
1694 | ||
1695 | static void | |
1696 | read_specs (const char *filename, int main_p) | |
1697 | { | |
1698 | char *buffer; | |
1699 | char *p; | |
1700 | ||
1701 | buffer = load_specs (filename); | |
1702 | ||
1703 | /* Scan BUFFER for specs, putting them in the vector. */ | |
1704 | p = buffer; | |
1705 | while (1) | |
1706 | { | |
1707 | char *suffix; | |
1708 | char *spec; | |
1709 | char *in, *out, *p1, *p2, *p3; | |
1710 | ||
1711 | /* Advance P in BUFFER to the next nonblank nocomment line. */ | |
1712 | p = skip_whitespace (p); | |
1713 | if (*p == 0) | |
1714 | break; | |
1715 | ||
1716 | /* Is this a special command that starts with '%'? */ | |
1717 | /* Don't allow this for the main specs file, since it would | |
1718 | encourage people to overwrite it. */ | |
1719 | if (*p == '%' && !main_p) | |
1720 | { | |
1721 | p1 = p; | |
1722 | while (*p && *p != '\n') | |
1723 | p++; | |
1724 | ||
1725 | /* Skip '\n'. */ | |
1726 | p++; | |
1727 | ||
1728 | if (!strncmp (p1, "%include", sizeof ("%include") - 1) | |
1729 | && (p1[sizeof "%include" - 1] == ' ' | |
1730 | || p1[sizeof "%include" - 1] == '\t')) | |
1731 | { | |
1732 | char *new_filename; | |
1733 | ||
1734 | p1 += sizeof ("%include"); | |
1735 | while (*p1 == ' ' || *p1 == '\t') | |
1736 | p1++; | |
1737 | ||
1738 | if (*p1++ != '<' || p[-2] != '>') | |
1739 | fatal_error ("specs %%include syntax malformed after " | |
1740 | "%ld characters", | |
1741 | (long) (p1 - buffer + 1)); | |
1742 | ||
1743 | p[-2] = '\0'; | |
1744 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true); | |
1745 | read_specs (new_filename ? new_filename : p1, FALSE); | |
1746 | continue; | |
1747 | } | |
1748 | else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1) | |
1749 | && (p1[sizeof "%include_noerr" - 1] == ' ' | |
1750 | || p1[sizeof "%include_noerr" - 1] == '\t')) | |
1751 | { | |
1752 | char *new_filename; | |
1753 | ||
1754 | p1 += sizeof "%include_noerr"; | |
1755 | while (*p1 == ' ' || *p1 == '\t') | |
1756 | p1++; | |
1757 | ||
1758 | if (*p1++ != '<' || p[-2] != '>') | |
1759 | fatal_error ("specs %%include syntax malformed after " | |
1760 | "%ld characters", | |
1761 | (long) (p1 - buffer + 1)); | |
1762 | ||
1763 | p[-2] = '\0'; | |
1764 | new_filename = find_a_file (&startfile_prefixes, p1, R_OK, true); | |
1765 | if (new_filename) | |
1766 | read_specs (new_filename, FALSE); | |
1767 | else if (verbose_flag) | |
1768 | fnotice (stderr, "could not find specs file %s\n", p1); | |
1769 | continue; | |
1770 | } | |
1771 | else if (!strncmp (p1, "%rename", sizeof "%rename" - 1) | |
1772 | && (p1[sizeof "%rename" - 1] == ' ' | |
1773 | || p1[sizeof "%rename" - 1] == '\t')) | |
1774 | { | |
1775 | int name_len; | |
1776 | struct spec_list *sl; | |
1777 | struct spec_list *newsl; | |
1778 | ||
1779 | /* Get original name. */ | |
1780 | p1 += sizeof "%rename"; | |
1781 | while (*p1 == ' ' || *p1 == '\t') | |
1782 | p1++; | |
1783 | ||
1784 | if (! ISALPHA ((unsigned char) *p1)) | |
1785 | fatal_error ("specs %%rename syntax malformed after " | |
1786 | "%ld characters", | |
1787 | (long) (p1 - buffer)); | |
1788 | ||
1789 | p2 = p1; | |
1790 | while (*p2 && !ISSPACE ((unsigned char) *p2)) | |
1791 | p2++; | |
1792 | ||
1793 | if (*p2 != ' ' && *p2 != '\t') | |
1794 | fatal_error ("specs %%rename syntax malformed after " | |
1795 | "%ld characters", | |
1796 | (long) (p2 - buffer)); | |
1797 | ||
1798 | name_len = p2 - p1; | |
1799 | *p2++ = '\0'; | |
1800 | while (*p2 == ' ' || *p2 == '\t') | |
1801 | p2++; | |
1802 | ||
1803 | if (! ISALPHA ((unsigned char) *p2)) | |
1804 | fatal_error ("specs %%rename syntax malformed after " | |
1805 | "%ld characters", | |
1806 | (long) (p2 - buffer)); | |
1807 | ||
1808 | /* Get new spec name. */ | |
1809 | p3 = p2; | |
1810 | while (*p3 && !ISSPACE ((unsigned char) *p3)) | |
1811 | p3++; | |
1812 | ||
1813 | if (p3 != p - 1) | |
1814 | fatal_error ("specs %%rename syntax malformed after " | |
1815 | "%ld characters", | |
1816 | (long) (p3 - buffer)); | |
1817 | *p3 = '\0'; | |
1818 | ||
1819 | for (sl = specs; sl; sl = sl->next) | |
1820 | if (name_len == sl->name_len && !strcmp (sl->name, p1)) | |
1821 | break; | |
1822 | ||
1823 | if (!sl) | |
1824 | fatal_error ("specs %s spec was not found to be renamed", p1); | |
1825 | ||
1826 | if (strcmp (p1, p2) == 0) | |
1827 | continue; | |
1828 | ||
1829 | for (newsl = specs; newsl; newsl = newsl->next) | |
1830 | if (strcmp (newsl->name, p2) == 0) | |
1831 | fatal_error ("%s: attempt to rename spec %qs to " | |
1832 | "already defined spec %qs", | |
1833 | filename, p1, p2); | |
1834 | ||
1835 | if (verbose_flag) | |
1836 | { | |
1837 | fnotice (stderr, "rename spec %s to %s\n", p1, p2); | |
1838 | #ifdef DEBUG_SPECS | |
1839 | fnotice (stderr, "spec is '%s'\n\n", *(sl->ptr_spec)); | |
1840 | #endif | |
1841 | } | |
1842 | ||
1843 | set_spec (p2, *(sl->ptr_spec)); | |
1844 | if (sl->alloc_p) | |
1845 | free (CONST_CAST (char *, *(sl->ptr_spec))); | |
1846 | ||
1847 | *(sl->ptr_spec) = ""; | |
1848 | sl->alloc_p = 0; | |
1849 | continue; | |
1850 | } | |
1851 | else | |
1852 | fatal_error ("specs unknown %% command after %ld characters", | |
1853 | (long) (p1 - buffer)); | |
1854 | } | |
1855 | ||
1856 | /* Find the colon that should end the suffix. */ | |
1857 | p1 = p; | |
1858 | while (*p1 && *p1 != ':' && *p1 != '\n') | |
1859 | p1++; | |
1860 | ||
1861 | /* The colon shouldn't be missing. */ | |
1862 | if (*p1 != ':') | |
1863 | fatal_error ("specs file malformed after %ld characters", | |
1864 | (long) (p1 - buffer)); | |
1865 | ||
1866 | /* Skip back over trailing whitespace. */ | |
1867 | p2 = p1; | |
1868 | while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t')) | |
1869 | p2--; | |
1870 | ||
1871 | /* Copy the suffix to a string. */ | |
1872 | suffix = save_string (p, p2 - p); | |
1873 | /* Find the next line. */ | |
1874 | p = skip_whitespace (p1 + 1); | |
1875 | if (p[1] == 0) | |
1876 | fatal_error ("specs file malformed after %ld characters", | |
1877 | (long) (p - buffer)); | |
1878 | ||
1879 | p1 = p; | |
1880 | /* Find next blank line or end of string. */ | |
1881 | while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0'))) | |
1882 | p1++; | |
1883 | ||
1884 | /* Specs end at the blank line and do not include the newline. */ | |
1885 | spec = save_string (p, p1 - p); | |
1886 | p = p1; | |
1887 | ||
1888 | /* Delete backslash-newline sequences from the spec. */ | |
1889 | in = spec; | |
1890 | out = spec; | |
1891 | while (*in != 0) | |
1892 | { | |
1893 | if (in[0] == '\\' && in[1] == '\n') | |
1894 | in += 2; | |
1895 | else if (in[0] == '#') | |
1896 | while (*in && *in != '\n') | |
1897 | in++; | |
1898 | ||
1899 | else | |
1900 | *out++ = *in++; | |
1901 | } | |
1902 | *out = 0; | |
1903 | ||
1904 | if (suffix[0] == '*') | |
1905 | { | |
1906 | if (! strcmp (suffix, "*link_command")) | |
1907 | link_command_spec = spec; | |
1908 | else | |
1909 | set_spec (suffix + 1, spec); | |
1910 | } | |
1911 | else | |
1912 | { | |
1913 | /* Add this pair to the vector. */ | |
1914 | compilers | |
1915 | = XRESIZEVEC (struct compiler, compilers, n_compilers + 2); | |
1916 | ||
1917 | compilers[n_compilers].suffix = suffix; | |
1918 | compilers[n_compilers].spec = spec; | |
1919 | n_compilers++; | |
1920 | memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]); | |
1921 | } | |
1922 | ||
1923 | if (*suffix == 0) | |
1924 | link_command_spec = spec; | |
1925 | } | |
1926 | ||
1927 | if (link_command_spec == 0) | |
1928 | fatal_error ("spec file has no spec for linking"); | |
1929 | } | |
1930 | \f | |
1931 | /* Record the names of temporary files we tell compilers to write, | |
1932 | and delete them at the end of the run. */ | |
1933 | ||
1934 | /* This is the common prefix we use to make temp file names. | |
1935 | It is chosen once for each run of this program. | |
1936 | It is substituted into a spec by %g or %j. | |
1937 | Thus, all temp file names contain this prefix. | |
1938 | In practice, all temp file names start with this prefix. | |
1939 | ||
1940 | This prefix comes from the envvar TMPDIR if it is defined; | |
1941 | otherwise, from the P_tmpdir macro if that is defined; | |
1942 | otherwise, in /usr/tmp or /tmp; | |
1943 | or finally the current directory if all else fails. */ | |
1944 | ||
1945 | static const char *temp_filename; | |
1946 | ||
1947 | /* Length of the prefix. */ | |
1948 | ||
1949 | static int temp_filename_length; | |
1950 | ||
1951 | /* Define the list of temporary files to delete. */ | |
1952 | ||
1953 | struct temp_file | |
1954 | { | |
1955 | const char *name; | |
1956 | struct temp_file *next; | |
1957 | }; | |
1958 | ||
1959 | /* Queue of files to delete on success or failure of compilation. */ | |
1960 | static struct temp_file *always_delete_queue; | |
1961 | /* Queue of files to delete on failure of compilation. */ | |
1962 | static struct temp_file *failure_delete_queue; | |
1963 | ||
1964 | /* Record FILENAME as a file to be deleted automatically. | |
1965 | ALWAYS_DELETE nonzero means delete it if all compilation succeeds; | |
1966 | otherwise delete it in any case. | |
1967 | FAIL_DELETE nonzero means delete it if a compilation step fails; | |
1968 | otherwise delete it in any case. */ | |
1969 | ||
1970 | void | |
1971 | record_temp_file (const char *filename, int always_delete, int fail_delete) | |
1972 | { | |
1973 | char *const name = xstrdup (filename); | |
1974 | ||
1975 | if (always_delete) | |
1976 | { | |
1977 | struct temp_file *temp; | |
1978 | for (temp = always_delete_queue; temp; temp = temp->next) | |
1979 | if (! filename_cmp (name, temp->name)) | |
1980 | goto already1; | |
1981 | ||
1982 | temp = XNEW (struct temp_file); | |
1983 | temp->next = always_delete_queue; | |
1984 | temp->name = name; | |
1985 | always_delete_queue = temp; | |
1986 | ||
1987 | already1:; | |
1988 | } | |
1989 | ||
1990 | if (fail_delete) | |
1991 | { | |
1992 | struct temp_file *temp; | |
1993 | for (temp = failure_delete_queue; temp; temp = temp->next) | |
1994 | if (! filename_cmp (name, temp->name)) | |
1995 | goto already2; | |
1996 | ||
1997 | temp = XNEW (struct temp_file); | |
1998 | temp->next = failure_delete_queue; | |
1999 | temp->name = name; | |
2000 | failure_delete_queue = temp; | |
2001 | ||
2002 | already2:; | |
2003 | } | |
2004 | } | |
2005 | ||
2006 | /* Delete all the temporary files whose names we previously recorded. */ | |
2007 | ||
2008 | #ifndef DELETE_IF_ORDINARY | |
2009 | #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \ | |
2010 | do \ | |
2011 | { \ | |
2012 | if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \ | |
2013 | if (unlink (NAME) < 0) \ | |
2014 | if (VERBOSE_FLAG) \ | |
2015 | perror_with_name (NAME); \ | |
2016 | } while (0) | |
2017 | #endif | |
2018 | ||
2019 | static void | |
2020 | delete_if_ordinary (const char *name) | |
2021 | { | |
2022 | struct stat st; | |
2023 | #ifdef DEBUG | |
2024 | int i, c; | |
2025 | ||
2026 | printf ("Delete %s? (y or n) ", name); | |
2027 | fflush (stdout); | |
2028 | i = getchar (); | |
2029 | if (i != '\n') | |
2030 | while ((c = getchar ()) != '\n' && c != EOF) | |
2031 | ; | |
2032 | ||
2033 | if (i == 'y' || i == 'Y') | |
2034 | #endif /* DEBUG */ | |
2035 | DELETE_IF_ORDINARY (name, st, verbose_flag); | |
2036 | } | |
2037 | ||
2038 | static void | |
2039 | delete_temp_files (void) | |
2040 | { | |
2041 | struct temp_file *temp; | |
2042 | ||
2043 | for (temp = always_delete_queue; temp; temp = temp->next) | |
2044 | delete_if_ordinary (temp->name); | |
2045 | always_delete_queue = 0; | |
2046 | } | |
2047 | ||
2048 | /* Delete all the files to be deleted on error. */ | |
2049 | ||
2050 | static void | |
2051 | delete_failure_queue (void) | |
2052 | { | |
2053 | struct temp_file *temp; | |
2054 | ||
2055 | for (temp = failure_delete_queue; temp; temp = temp->next) | |
2056 | delete_if_ordinary (temp->name); | |
2057 | } | |
2058 | ||
2059 | static void | |
2060 | clear_failure_queue (void) | |
2061 | { | |
2062 | failure_delete_queue = 0; | |
2063 | } | |
2064 | \f | |
2065 | /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK | |
2066 | returns non-NULL. | |
2067 | If DO_MULTI is true iterate over the paths twice, first with multilib | |
2068 | suffix then without, otherwise iterate over the paths once without | |
2069 | adding a multilib suffix. When DO_MULTI is true, some attempt is made | |
2070 | to avoid visiting the same path twice, but we could do better. For | |
2071 | instance, /usr/lib/../lib is considered different from /usr/lib. | |
2072 | At least EXTRA_SPACE chars past the end of the path passed to | |
2073 | CALLBACK are available for use by the callback. | |
2074 | CALLBACK_INFO allows extra parameters to be passed to CALLBACK. | |
2075 | ||
2076 | Returns the value returned by CALLBACK. */ | |
2077 | ||
2078 | static void * | |
2079 | for_each_path (const struct path_prefix *paths, | |
2080 | bool do_multi, | |
2081 | size_t extra_space, | |
2082 | void *(*callback) (char *, void *), | |
2083 | void *callback_info) | |
2084 | { | |
2085 | struct prefix_list *pl; | |
2086 | const char *multi_dir = NULL; | |
2087 | const char *multi_os_dir = NULL; | |
5ce9237c | 2088 | const char *multiarch_suffix = NULL; |
e4b17023 JM |
2089 | const char *multi_suffix; |
2090 | const char *just_multi_suffix; | |
2091 | char *path = NULL; | |
2092 | void *ret = NULL; | |
2093 | bool skip_multi_dir = false; | |
2094 | bool skip_multi_os_dir = false; | |
2095 | ||
2096 | multi_suffix = machine_suffix; | |
2097 | just_multi_suffix = just_machine_suffix; | |
2098 | if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0) | |
2099 | { | |
2100 | multi_dir = concat (multilib_dir, dir_separator_str, NULL); | |
2101 | multi_suffix = concat (multi_suffix, multi_dir, NULL); | |
2102 | just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL); | |
2103 | } | |
2104 | if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0) | |
2105 | multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL); | |
5ce9237c JM |
2106 | if (multiarch_dir) |
2107 | multiarch_suffix = concat (multiarch_dir, dir_separator_str, NULL); | |
e4b17023 JM |
2108 | |
2109 | while (1) | |
2110 | { | |
2111 | size_t multi_dir_len = 0; | |
2112 | size_t multi_os_dir_len = 0; | |
5ce9237c | 2113 | size_t multiarch_len = 0; |
e4b17023 JM |
2114 | size_t suffix_len; |
2115 | size_t just_suffix_len; | |
2116 | size_t len; | |
2117 | ||
2118 | if (multi_dir) | |
2119 | multi_dir_len = strlen (multi_dir); | |
2120 | if (multi_os_dir) | |
2121 | multi_os_dir_len = strlen (multi_os_dir); | |
5ce9237c JM |
2122 | if (multiarch_suffix) |
2123 | multiarch_len = strlen (multiarch_suffix); | |
e4b17023 JM |
2124 | suffix_len = strlen (multi_suffix); |
2125 | just_suffix_len = strlen (just_multi_suffix); | |
2126 | ||
2127 | if (path == NULL) | |
2128 | { | |
2129 | len = paths->max_len + extra_space + 1; | |
5ce9237c | 2130 | len += MAX (MAX (suffix_len, multi_os_dir_len), multiarch_len); |
e4b17023 JM |
2131 | path = XNEWVEC (char, len); |
2132 | } | |
2133 | ||
2134 | for (pl = paths->plist; pl != 0; pl = pl->next) | |
2135 | { | |
2136 | len = strlen (pl->prefix); | |
2137 | memcpy (path, pl->prefix, len); | |
2138 | ||
fdc4107c | 2139 | #if 0 /* MACHINE/VERSION isn't used anywhere DragonFly */ |
e4b17023 JM |
2140 | /* Look first in MACHINE/VERSION subdirectory. */ |
2141 | if (!skip_multi_dir) | |
2142 | { | |
2143 | memcpy (path + len, multi_suffix, suffix_len + 1); | |
2144 | ret = callback (path, callback_info); | |
2145 | if (ret) | |
2146 | break; | |
2147 | } | |
fdc4107c | 2148 | #endif |
e4b17023 JM |
2149 | |
2150 | /* Some paths are tried with just the machine (ie. target) | |
2151 | subdir. This is used for finding as, ld, etc. */ | |
2152 | if (!skip_multi_dir | |
2153 | && pl->require_machine_suffix == 2) | |
2154 | { | |
2155 | memcpy (path + len, just_multi_suffix, just_suffix_len + 1); | |
2156 | ret = callback (path, callback_info); | |
2157 | if (ret) | |
2158 | break; | |
2159 | } | |
2160 | ||
5ce9237c JM |
2161 | /* Now try the multiarch path. */ |
2162 | if (!skip_multi_dir | |
2163 | && !pl->require_machine_suffix && multiarch_dir) | |
2164 | { | |
2165 | memcpy (path + len, multiarch_suffix, multiarch_len + 1); | |
2166 | ret = callback (path, callback_info); | |
2167 | if (ret) | |
2168 | break; | |
2169 | } | |
2170 | ||
e4b17023 JM |
2171 | /* Now try the base path. */ |
2172 | if (!pl->require_machine_suffix | |
2173 | && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir)) | |
2174 | { | |
2175 | const char *this_multi; | |
2176 | size_t this_multi_len; | |
2177 | ||
2178 | if (pl->os_multilib) | |
2179 | { | |
2180 | this_multi = multi_os_dir; | |
2181 | this_multi_len = multi_os_dir_len; | |
2182 | } | |
2183 | else | |
2184 | { | |
2185 | this_multi = multi_dir; | |
2186 | this_multi_len = multi_dir_len; | |
2187 | } | |
2188 | ||
2189 | if (this_multi_len) | |
2190 | memcpy (path + len, this_multi, this_multi_len + 1); | |
2191 | else | |
2192 | path[len] = '\0'; | |
2193 | ||
2194 | ret = callback (path, callback_info); | |
2195 | if (ret) | |
2196 | break; | |
2197 | } | |
2198 | } | |
2199 | if (pl) | |
2200 | break; | |
2201 | ||
2202 | if (multi_dir == NULL && multi_os_dir == NULL) | |
2203 | break; | |
2204 | ||
2205 | /* Run through the paths again, this time without multilibs. | |
2206 | Don't repeat any we have already seen. */ | |
2207 | if (multi_dir) | |
2208 | { | |
2209 | free (CONST_CAST (char *, multi_dir)); | |
2210 | multi_dir = NULL; | |
2211 | free (CONST_CAST (char *, multi_suffix)); | |
2212 | multi_suffix = machine_suffix; | |
2213 | free (CONST_CAST (char *, just_multi_suffix)); | |
2214 | just_multi_suffix = just_machine_suffix; | |
2215 | } | |
2216 | else | |
2217 | skip_multi_dir = true; | |
2218 | if (multi_os_dir) | |
2219 | { | |
2220 | free (CONST_CAST (char *, multi_os_dir)); | |
2221 | multi_os_dir = NULL; | |
2222 | } | |
2223 | else | |
2224 | skip_multi_os_dir = true; | |
2225 | } | |
2226 | ||
2227 | if (multi_dir) | |
2228 | { | |
2229 | free (CONST_CAST (char *, multi_dir)); | |
2230 | free (CONST_CAST (char *, multi_suffix)); | |
2231 | free (CONST_CAST (char *, just_multi_suffix)); | |
2232 | } | |
2233 | if (multi_os_dir) | |
2234 | free (CONST_CAST (char *, multi_os_dir)); | |
2235 | if (ret != path) | |
2236 | free (path); | |
2237 | return ret; | |
2238 | } | |
2239 | ||
2240 | /* Callback for build_search_list. Adds path to obstack being built. */ | |
2241 | ||
2242 | struct add_to_obstack_info { | |
2243 | struct obstack *ob; | |
2244 | bool check_dir; | |
2245 | bool first_time; | |
2246 | }; | |
2247 | ||
2248 | static void * | |
2249 | add_to_obstack (char *path, void *data) | |
2250 | { | |
2251 | struct add_to_obstack_info *info = (struct add_to_obstack_info *) data; | |
2252 | ||
2253 | if (info->check_dir && !is_directory (path, false)) | |
2254 | return NULL; | |
2255 | ||
2256 | if (!info->first_time) | |
2257 | obstack_1grow (info->ob, PATH_SEPARATOR); | |
2258 | ||
2259 | obstack_grow (info->ob, path, strlen (path)); | |
2260 | ||
2261 | info->first_time = false; | |
2262 | return NULL; | |
2263 | } | |
2264 | ||
2265 | /* Add or change the value of an environment variable, outputting the | |
2266 | change to standard error if in verbose mode. */ | |
2267 | static void | |
2268 | xputenv (const char *string) | |
2269 | { | |
2270 | if (verbose_flag) | |
2271 | fnotice (stderr, "%s\n", string); | |
2272 | putenv (CONST_CAST (char *, string)); | |
2273 | } | |
2274 | ||
2275 | /* Build a list of search directories from PATHS. | |
2276 | PREFIX is a string to prepend to the list. | |
2277 | If CHECK_DIR_P is true we ensure the directory exists. | |
2278 | If DO_MULTI is true, multilib paths are output first, then | |
2279 | non-multilib paths. | |
2280 | This is used mostly by putenv_from_prefixes so we use `collect_obstack'. | |
2281 | It is also used by the --print-search-dirs flag. */ | |
2282 | ||
2283 | static char * | |
2284 | build_search_list (const struct path_prefix *paths, const char *prefix, | |
2285 | bool check_dir, bool do_multi) | |
2286 | { | |
2287 | struct add_to_obstack_info info; | |
2288 | ||
2289 | info.ob = &collect_obstack; | |
2290 | info.check_dir = check_dir; | |
2291 | info.first_time = true; | |
2292 | ||
2293 | obstack_grow (&collect_obstack, prefix, strlen (prefix)); | |
2294 | obstack_1grow (&collect_obstack, '='); | |
2295 | ||
2296 | for_each_path (paths, do_multi, 0, add_to_obstack, &info); | |
2297 | ||
2298 | obstack_1grow (&collect_obstack, '\0'); | |
2299 | return XOBFINISH (&collect_obstack, char *); | |
2300 | } | |
2301 | ||
2302 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables | |
2303 | for collect. */ | |
2304 | ||
2305 | static void | |
2306 | putenv_from_prefixes (const struct path_prefix *paths, const char *env_var, | |
2307 | bool do_multi) | |
2308 | { | |
2309 | xputenv (build_search_list (paths, env_var, true, do_multi)); | |
2310 | } | |
2311 | \f | |
2312 | /* Check whether NAME can be accessed in MODE. This is like access, | |
2313 | except that it never considers directories to be executable. */ | |
2314 | ||
2315 | static int | |
2316 | access_check (const char *name, int mode) | |
2317 | { | |
2318 | if (mode == X_OK) | |
2319 | { | |
2320 | struct stat st; | |
2321 | ||
2322 | if (stat (name, &st) < 0 | |
2323 | || S_ISDIR (st.st_mode)) | |
2324 | return -1; | |
2325 | } | |
2326 | ||
2327 | return access (name, mode); | |
2328 | } | |
2329 | ||
2330 | /* Callback for find_a_file. Appends the file name to the directory | |
2331 | path. If the resulting file exists in the right mode, return the | |
2332 | full pathname to the file. */ | |
2333 | ||
2334 | struct file_at_path_info { | |
2335 | const char *name; | |
2336 | const char *suffix; | |
2337 | int name_len; | |
2338 | int suffix_len; | |
2339 | int mode; | |
2340 | }; | |
2341 | ||
2342 | static void * | |
2343 | file_at_path (char *path, void *data) | |
2344 | { | |
2345 | struct file_at_path_info *info = (struct file_at_path_info *) data; | |
2346 | size_t len = strlen (path); | |
2347 | ||
2348 | memcpy (path + len, info->name, info->name_len); | |
2349 | len += info->name_len; | |
2350 | ||
2351 | /* Some systems have a suffix for executable files. | |
2352 | So try appending that first. */ | |
2353 | if (info->suffix_len) | |
2354 | { | |
2355 | memcpy (path + len, info->suffix, info->suffix_len + 1); | |
2356 | if (access_check (path, info->mode) == 0) | |
2357 | return path; | |
2358 | } | |
2359 | ||
2360 | path[len] = '\0'; | |
2361 | if (access_check (path, info->mode) == 0) | |
2362 | return path; | |
2363 | ||
2364 | return NULL; | |
2365 | } | |
2366 | ||
2367 | /* Search for NAME using the prefix list PREFIXES. MODE is passed to | |
2368 | access to check permissions. If DO_MULTI is true, search multilib | |
2369 | paths then non-multilib paths, otherwise do not search multilib paths. | |
2370 | Return 0 if not found, otherwise return its name, allocated with malloc. */ | |
2371 | ||
2372 | static char * | |
2373 | find_a_file (const struct path_prefix *pprefix, const char *name, int mode, | |
2374 | bool do_multi) | |
2375 | { | |
2376 | struct file_at_path_info info; | |
2377 | ||
2378 | #ifdef DEFAULT_ASSEMBLER | |
2379 | if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, mode) == 0) | |
2380 | return xstrdup (DEFAULT_ASSEMBLER); | |
2381 | #endif | |
2382 | ||
2383 | #ifdef DEFAULT_LINKER | |
2384 | if (! strcmp(name, "ld") && access (DEFAULT_LINKER, mode) == 0) | |
2385 | return xstrdup (DEFAULT_LINKER); | |
2386 | #endif | |
2387 | ||
2388 | /* Determine the filename to execute (special case for absolute paths). */ | |
2389 | ||
2390 | if (IS_ABSOLUTE_PATH (name)) | |
2391 | { | |
2392 | if (access (name, mode) == 0) | |
2393 | return xstrdup (name); | |
2394 | ||
2395 | return NULL; | |
2396 | } | |
2397 | ||
2398 | info.name = name; | |
2399 | info.suffix = (mode & X_OK) != 0 ? HOST_EXECUTABLE_SUFFIX : ""; | |
2400 | info.name_len = strlen (info.name); | |
2401 | info.suffix_len = strlen (info.suffix); | |
2402 | info.mode = mode; | |
2403 | ||
2404 | return (char*) for_each_path (pprefix, do_multi, | |
2405 | info.name_len + info.suffix_len, | |
2406 | file_at_path, &info); | |
2407 | } | |
2408 | ||
2409 | /* Ranking of prefixes in the sort list. -B prefixes are put before | |
2410 | all others. */ | |
2411 | ||
2412 | enum path_prefix_priority | |
2413 | { | |
2414 | PREFIX_PRIORITY_B_OPT, | |
2415 | PREFIX_PRIORITY_LAST | |
2416 | }; | |
2417 | ||
2418 | /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending | |
2419 | order according to PRIORITY. Within each PRIORITY, new entries are | |
2420 | appended. | |
2421 | ||
2422 | If WARN is nonzero, we will warn if no file is found | |
2423 | through this prefix. WARN should point to an int | |
2424 | which will be set to 1 if this entry is used. | |
2425 | ||
2426 | COMPONENT is the value to be passed to update_path. | |
2427 | ||
2428 | REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without | |
2429 | the complete value of machine_suffix. | |
2430 | 2 means try both machine_suffix and just_machine_suffix. */ | |
2431 | ||
2432 | static void | |
2433 | add_prefix (struct path_prefix *pprefix, const char *prefix, | |
2434 | const char *component, /* enum prefix_priority */ int priority, | |
2435 | int require_machine_suffix, int os_multilib) | |
2436 | { | |
2437 | struct prefix_list *pl, **prev; | |
2438 | int len; | |
2439 | ||
2440 | for (prev = &pprefix->plist; | |
2441 | (*prev) != NULL && (*prev)->priority <= priority; | |
2442 | prev = &(*prev)->next) | |
2443 | ; | |
2444 | ||
2445 | /* Keep track of the longest prefix. */ | |
2446 | ||
2447 | prefix = update_path (prefix, component); | |
2448 | len = strlen (prefix); | |
2449 | if (len > pprefix->max_len) | |
2450 | pprefix->max_len = len; | |
2451 | ||
2452 | pl = XNEW (struct prefix_list); | |
2453 | pl->prefix = prefix; | |
2454 | pl->require_machine_suffix = require_machine_suffix; | |
2455 | pl->priority = priority; | |
2456 | pl->os_multilib = os_multilib; | |
2457 | ||
2458 | /* Insert after PREV. */ | |
2459 | pl->next = (*prev); | |
2460 | (*prev) = pl; | |
2461 | } | |
2462 | ||
2463 | /* Same as add_prefix, but prepending target_system_root to prefix. */ | |
2464 | /* The target_system_root prefix has been relocated by gcc_exec_prefix. */ | |
2465 | static void | |
2466 | add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix, | |
2467 | const char *component, | |
2468 | /* enum prefix_priority */ int priority, | |
2469 | int require_machine_suffix, int os_multilib) | |
2470 | { | |
2471 | if (!IS_ABSOLUTE_PATH (prefix)) | |
2472 | fatal_error ("system path %qs is not absolute", prefix); | |
2473 | ||
2474 | if (target_system_root) | |
2475 | { | |
2476 | char *sysroot_no_trailing_dir_separator = xstrdup (target_system_root); | |
2477 | size_t sysroot_len = strlen (target_system_root); | |
2478 | ||
2479 | if (sysroot_len > 0 | |
2480 | && target_system_root[sysroot_len - 1] == DIR_SEPARATOR) | |
2481 | sysroot_no_trailing_dir_separator[sysroot_len - 1] = '\0'; | |
2482 | ||
2483 | if (target_sysroot_suffix) | |
2484 | prefix = concat (target_sysroot_suffix, prefix, NULL); | |
2485 | prefix = concat (sysroot_no_trailing_dir_separator, prefix, NULL); | |
2486 | free (sysroot_no_trailing_dir_separator); | |
2487 | ||
2488 | /* We have to override this because GCC's notion of sysroot | |
2489 | moves along with GCC. */ | |
2490 | component = "GCC"; | |
2491 | } | |
2492 | ||
2493 | add_prefix (pprefix, prefix, component, priority, | |
2494 | require_machine_suffix, os_multilib); | |
2495 | } | |
2496 | \f | |
2497 | /* Execute the command specified by the arguments on the current line of spec. | |
2498 | When using pipes, this includes several piped-together commands | |
2499 | with `|' between them. | |
2500 | ||
2501 | Return 0 if successful, -1 if failed. */ | |
2502 | ||
2503 | static int | |
2504 | execute (void) | |
2505 | { | |
2506 | int i; | |
2507 | int n_commands; /* # of command. */ | |
2508 | char *string; | |
2509 | struct pex_obj *pex; | |
2510 | struct command | |
2511 | { | |
2512 | const char *prog; /* program name. */ | |
2513 | const char **argv; /* vector of args. */ | |
2514 | }; | |
2515 | const char *arg; | |
2516 | ||
2517 | struct command *commands; /* each command buffer with above info. */ | |
2518 | ||
2519 | gcc_assert (!processing_spec_function); | |
2520 | ||
2521 | if (wrapper_string) | |
2522 | { | |
2523 | string = find_a_file (&exec_prefixes, | |
2524 | VEC_index (const_char_p, argbuf, 0), X_OK, false); | |
2525 | if (string) | |
2526 | VEC_replace (const_char_p, argbuf, 0, string); | |
2527 | insert_wrapper (wrapper_string); | |
2528 | } | |
2529 | ||
2530 | /* Count # of piped commands. */ | |
2531 | for (n_commands = 1, i = 0; VEC_iterate (const_char_p, argbuf, i, arg); i++) | |
2532 | if (strcmp (arg, "|") == 0) | |
2533 | n_commands++; | |
2534 | ||
2535 | /* Get storage for each command. */ | |
2536 | commands = (struct command *) alloca (n_commands * sizeof (struct command)); | |
2537 | ||
2538 | /* Split argbuf into its separate piped processes, | |
2539 | and record info about each one. | |
2540 | Also search for the programs that are to be run. */ | |
2541 | ||
2542 | VEC_safe_push (const_char_p, heap, argbuf, 0); | |
2543 | ||
2544 | commands[0].prog = VEC_index (const_char_p, argbuf, 0); /* first command. */ | |
2545 | commands[0].argv = VEC_address (const_char_p, argbuf); | |
2546 | ||
2547 | if (!wrapper_string) | |
2548 | { | |
2549 | string = find_a_file (&exec_prefixes, commands[0].prog, X_OK, false); | |
2550 | commands[0].argv[0] = (string) ? string : commands[0].argv[0]; | |
2551 | } | |
2552 | ||
2553 | for (n_commands = 1, i = 0; VEC_iterate (const_char_p, argbuf, i, arg); i++) | |
2554 | if (arg && strcmp (arg, "|") == 0) | |
2555 | { /* each command. */ | |
2556 | #if defined (__MSDOS__) || defined (OS2) || defined (VMS) | |
2557 | fatal_error ("-pipe not supported"); | |
2558 | #endif | |
2559 | VEC_replace (const_char_p, argbuf, i, 0); /* Termination of | |
2560 | command args. */ | |
2561 | commands[n_commands].prog = VEC_index (const_char_p, argbuf, i + 1); | |
2562 | commands[n_commands].argv | |
2563 | = &(VEC_address (const_char_p, argbuf))[i + 1]; | |
2564 | string = find_a_file (&exec_prefixes, commands[n_commands].prog, | |
2565 | X_OK, false); | |
2566 | if (string) | |
2567 | commands[n_commands].argv[0] = string; | |
2568 | n_commands++; | |
2569 | } | |
2570 | ||
2571 | /* If -v, print what we are about to do, and maybe query. */ | |
2572 | ||
2573 | if (verbose_flag) | |
2574 | { | |
2575 | /* For help listings, put a blank line between sub-processes. */ | |
2576 | if (print_help_list) | |
2577 | fputc ('\n', stderr); | |
2578 | ||
2579 | /* Print each piped command as a separate line. */ | |
2580 | for (i = 0; i < n_commands; i++) | |
2581 | { | |
2582 | const char *const *j; | |
2583 | ||
2584 | if (verbose_only_flag) | |
2585 | { | |
2586 | for (j = commands[i].argv; *j; j++) | |
2587 | { | |
2588 | const char *p; | |
2589 | for (p = *j; *p; ++p) | |
2590 | if (!ISALNUM ((unsigned char) *p) | |
2591 | && *p != '_' && *p != '/' && *p != '-' && *p != '.') | |
2592 | break; | |
2593 | if (*p || !*j) | |
2594 | { | |
2595 | fprintf (stderr, " \""); | |
2596 | for (p = *j; *p; ++p) | |
2597 | { | |
2598 | if (*p == '"' || *p == '\\' || *p == '$') | |
2599 | fputc ('\\', stderr); | |
2600 | fputc (*p, stderr); | |
2601 | } | |
2602 | fputc ('"', stderr); | |
2603 | } | |
2604 | /* If it's empty, print "". */ | |
2605 | else if (!**j) | |
2606 | fprintf (stderr, " \"\""); | |
2607 | else | |
2608 | fprintf (stderr, " %s", *j); | |
2609 | } | |
2610 | } | |
2611 | else | |
2612 | for (j = commands[i].argv; *j; j++) | |
2613 | /* If it's empty, print "". */ | |
2614 | if (!**j) | |
2615 | fprintf (stderr, " \"\""); | |
2616 | else | |
2617 | fprintf (stderr, " %s", *j); | |
2618 | ||
2619 | /* Print a pipe symbol after all but the last command. */ | |
2620 | if (i + 1 != n_commands) | |
2621 | fprintf (stderr, " |"); | |
2622 | fprintf (stderr, "\n"); | |
2623 | } | |
2624 | fflush (stderr); | |
2625 | if (verbose_only_flag != 0) | |
2626 | { | |
2627 | /* verbose_only_flag should act as if the spec was | |
2628 | executed, so increment execution_count before | |
2629 | returning. This prevents spurious warnings about | |
2630 | unused linker input files, etc. */ | |
2631 | execution_count++; | |
2632 | return 0; | |
2633 | } | |
2634 | #ifdef DEBUG | |
2635 | fnotice (stderr, "\nGo ahead? (y or n) "); | |
2636 | fflush (stderr); | |
2637 | i = getchar (); | |
2638 | if (i != '\n') | |
2639 | while (getchar () != '\n') | |
2640 | ; | |
2641 | ||
2642 | if (i != 'y' && i != 'Y') | |
2643 | return 0; | |
2644 | #endif /* DEBUG */ | |
2645 | } | |
2646 | ||
2647 | #ifdef ENABLE_VALGRIND_CHECKING | |
2648 | /* Run the each command through valgrind. To simplify prepending the | |
2649 | path to valgrind and the option "-q" (for quiet operation unless | |
2650 | something triggers), we allocate a separate argv array. */ | |
2651 | ||
2652 | for (i = 0; i < n_commands; i++) | |
2653 | { | |
2654 | const char **argv; | |
2655 | int argc; | |
2656 | int j; | |
2657 | ||
2658 | for (argc = 0; commands[i].argv[argc] != NULL; argc++) | |
2659 | ; | |
2660 | ||
2661 | argv = XALLOCAVEC (const char *, argc + 3); | |
2662 | ||
2663 | argv[0] = VALGRIND_PATH; | |
2664 | argv[1] = "-q"; | |
2665 | for (j = 2; j < argc + 2; j++) | |
2666 | argv[j] = commands[i].argv[j - 2]; | |
2667 | argv[j] = NULL; | |
2668 | ||
2669 | commands[i].argv = argv; | |
2670 | commands[i].prog = argv[0]; | |
2671 | } | |
2672 | #endif | |
2673 | ||
2674 | /* Run each piped subprocess. */ | |
2675 | ||
2676 | pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file) | |
2677 | ? PEX_RECORD_TIMES : 0), | |
2678 | progname, temp_filename); | |
2679 | if (pex == NULL) | |
2680 | fatal_error ("pex_init failed: %m"); | |
2681 | ||
2682 | for (i = 0; i < n_commands; i++) | |
2683 | { | |
2684 | const char *errmsg; | |
2685 | int err; | |
2686 | const char *string = commands[i].argv[0]; | |
2687 | ||
2688 | errmsg = pex_run (pex, | |
2689 | ((i + 1 == n_commands ? PEX_LAST : 0) | |
2690 | | (string == commands[i].prog ? PEX_SEARCH : 0)), | |
2691 | string, CONST_CAST (char **, commands[i].argv), | |
2692 | NULL, NULL, &err); | |
2693 | if (errmsg != NULL) | |
2694 | { | |
2695 | if (err == 0) | |
2696 | fatal_error (errmsg); | |
2697 | else | |
2698 | { | |
2699 | errno = err; | |
2700 | pfatal_with_name (errmsg); | |
2701 | } | |
2702 | } | |
2703 | ||
2704 | if (string != commands[i].prog) | |
2705 | free (CONST_CAST (char *, string)); | |
2706 | } | |
2707 | ||
2708 | execution_count++; | |
2709 | ||
2710 | /* Wait for all the subprocesses to finish. */ | |
2711 | ||
2712 | { | |
2713 | int *statuses; | |
2714 | struct pex_time *times = NULL; | |
2715 | int ret_code = 0; | |
2716 | ||
2717 | statuses = (int *) alloca (n_commands * sizeof (int)); | |
2718 | if (!pex_get_status (pex, n_commands, statuses)) | |
2719 | fatal_error ("failed to get exit status: %m"); | |
2720 | ||
2721 | if (report_times || report_times_to_file) | |
2722 | { | |
2723 | times = (struct pex_time *) alloca (n_commands * sizeof (struct pex_time)); | |
2724 | if (!pex_get_times (pex, n_commands, times)) | |
2725 | fatal_error ("failed to get process times: %m"); | |
2726 | } | |
2727 | ||
2728 | pex_free (pex); | |
2729 | ||
2730 | for (i = 0; i < n_commands; ++i) | |
2731 | { | |
2732 | int status = statuses[i]; | |
2733 | ||
2734 | if (WIFSIGNALED (status)) | |
2735 | { | |
2736 | #ifdef SIGPIPE | |
2737 | /* SIGPIPE is a special case. It happens in -pipe mode | |
2738 | when the compiler dies before the preprocessor is done, | |
2739 | or the assembler dies before the compiler is done. | |
2740 | There's generally been an error already, and this is | |
2741 | just fallout. So don't generate another error unless | |
2742 | we would otherwise have succeeded. */ | |
2743 | if (WTERMSIG (status) == SIGPIPE | |
2744 | && (signal_count || greatest_status >= MIN_FATAL_STATUS)) | |
2745 | { | |
2746 | signal_count++; | |
2747 | ret_code = -1; | |
2748 | } | |
2749 | else | |
2750 | #endif | |
2751 | internal_error ("%s (program %s)", | |
2752 | strsignal (WTERMSIG (status)), commands[i].prog); | |
2753 | } | |
2754 | else if (WIFEXITED (status) | |
2755 | && WEXITSTATUS (status) >= MIN_FATAL_STATUS) | |
2756 | { | |
2757 | if (WEXITSTATUS (status) > greatest_status) | |
2758 | greatest_status = WEXITSTATUS (status); | |
2759 | ret_code = -1; | |
2760 | } | |
2761 | ||
2762 | if (report_times || report_times_to_file) | |
2763 | { | |
2764 | struct pex_time *pt = ×[i]; | |
2765 | double ut, st; | |
2766 | ||
2767 | ut = ((double) pt->user_seconds | |
2768 | + (double) pt->user_microseconds / 1.0e6); | |
2769 | st = ((double) pt->system_seconds | |
2770 | + (double) pt->system_microseconds / 1.0e6); | |
2771 | ||
2772 | if (ut + st != 0) | |
2773 | { | |
2774 | if (report_times) | |
2775 | fnotice (stderr, "# %s %.2f %.2f\n", | |
2776 | commands[i].prog, ut, st); | |
2777 | ||
2778 | if (report_times_to_file) | |
2779 | { | |
2780 | int c = 0; | |
2781 | const char *const *j; | |
2782 | ||
2783 | fprintf (report_times_to_file, "%g %g", ut, st); | |
2784 | ||
2785 | for (j = &commands[i].prog; *j; j = &commands[i].argv[++c]) | |
2786 | { | |
2787 | const char *p; | |
2788 | for (p = *j; *p; ++p) | |
2789 | if (*p == '"' || *p == '\\' || *p == '$' | |
2790 | || ISSPACE (*p)) | |
2791 | break; | |
2792 | ||
2793 | if (*p) | |
2794 | { | |
2795 | fprintf (report_times_to_file, " \""); | |
2796 | for (p = *j; *p; ++p) | |
2797 | { | |
2798 | if (*p == '"' || *p == '\\' || *p == '$') | |
2799 | fputc ('\\', report_times_to_file); | |
2800 | fputc (*p, report_times_to_file); | |
2801 | } | |
2802 | fputc ('"', report_times_to_file); | |
2803 | } | |
2804 | else | |
2805 | fprintf (report_times_to_file, " %s", *j); | |
2806 | } | |
2807 | ||
2808 | fputc ('\n', report_times_to_file); | |
2809 | } | |
2810 | } | |
2811 | } | |
2812 | } | |
2813 | ||
2814 | return ret_code; | |
2815 | } | |
2816 | } | |
2817 | \f | |
2818 | /* Find all the switches given to us | |
2819 | and make a vector describing them. | |
2820 | The elements of the vector are strings, one per switch given. | |
2821 | If a switch uses following arguments, then the `part1' field | |
2822 | is the switch itself and the `args' field | |
2823 | is a null-terminated vector containing the following arguments. | |
2824 | Bits in the `live_cond' field are: | |
2825 | SWITCH_LIVE to indicate this switch is true in a conditional spec. | |
2826 | SWITCH_FALSE to indicate this switch is overridden by a later switch. | |
2827 | SWITCH_IGNORE to indicate this switch should be ignored (used in %<S). | |
2828 | SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored | |
2829 | in all do_spec calls afterwards. Used for %<S from self specs. | |
2830 | The `validated' field is nonzero if any spec has looked at this switch; | |
2831 | if it remains zero at the end of the run, it must be meaningless. */ | |
2832 | ||
2833 | #define SWITCH_LIVE (1 << 0) | |
2834 | #define SWITCH_FALSE (1 << 1) | |
2835 | #define SWITCH_IGNORE (1 << 2) | |
2836 | #define SWITCH_IGNORE_PERMANENTLY (1 << 3) | |
2837 | #define SWITCH_KEEP_FOR_GCC (1 << 4) | |
2838 | ||
2839 | struct switchstr | |
2840 | { | |
2841 | const char *part1; | |
2842 | const char **args; | |
2843 | unsigned int live_cond; | |
2844 | unsigned char validated; | |
2845 | unsigned char ordering; | |
2846 | }; | |
2847 | ||
2848 | static struct switchstr *switches; | |
2849 | ||
2850 | static int n_switches; | |
2851 | ||
2852 | static int n_switches_alloc; | |
2853 | ||
2854 | /* Set to zero if -fcompare-debug is disabled, positive if it's | |
2855 | enabled and we're running the first compilation, negative if it's | |
2856 | enabled and we're running the second compilation. For most of the | |
2857 | time, it's in the range -1..1, but it can be temporarily set to 2 | |
2858 | or 3 to indicate that the -fcompare-debug flags didn't come from | |
2859 | the command-line, but rather from the GCC_COMPARE_DEBUG environment | |
2860 | variable, until a synthesized -fcompare-debug flag is added to the | |
2861 | command line. */ | |
2862 | int compare_debug; | |
2863 | ||
2864 | /* Set to nonzero if we've seen the -fcompare-debug-second flag. */ | |
2865 | int compare_debug_second; | |
2866 | ||
2867 | /* Set to the flags that should be passed to the second compilation in | |
2868 | a -fcompare-debug compilation. */ | |
2869 | const char *compare_debug_opt; | |
2870 | ||
2871 | static struct switchstr *switches_debug_check[2]; | |
2872 | ||
2873 | static int n_switches_debug_check[2]; | |
2874 | ||
2875 | static int n_switches_alloc_debug_check[2]; | |
2876 | ||
2877 | static char *debug_check_temp_file[2]; | |
2878 | ||
2879 | /* Language is one of three things: | |
2880 | ||
2881 | 1) The name of a real programming language. | |
2882 | 2) NULL, indicating that no one has figured out | |
2883 | what it is yet. | |
2884 | 3) '*', indicating that the file should be passed | |
2885 | to the linker. */ | |
2886 | struct infile | |
2887 | { | |
2888 | const char *name; | |
2889 | const char *language; | |
2890 | struct compiler *incompiler; | |
2891 | bool compiled; | |
2892 | bool preprocessed; | |
2893 | }; | |
2894 | ||
2895 | /* Also a vector of input files specified. */ | |
2896 | ||
2897 | static struct infile *infiles; | |
2898 | ||
2899 | int n_infiles; | |
2900 | ||
2901 | static int n_infiles_alloc; | |
2902 | ||
2903 | /* True if multiple input files are being compiled to a single | |
2904 | assembly file. */ | |
2905 | ||
2906 | static bool combine_inputs; | |
2907 | ||
2908 | /* This counts the number of libraries added by lang_specific_driver, so that | |
2909 | we can tell if there were any user supplied any files or libraries. */ | |
2910 | ||
2911 | static int added_libraries; | |
2912 | ||
2913 | /* And a vector of corresponding output files is made up later. */ | |
2914 | ||
2915 | const char **outfiles; | |
2916 | \f | |
2917 | #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX) | |
2918 | ||
2919 | /* Convert NAME to a new name if it is the standard suffix. DO_EXE | |
2920 | is true if we should look for an executable suffix. DO_OBJ | |
2921 | is true if we should look for an object suffix. */ | |
2922 | ||
2923 | static const char * | |
2924 | convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED, | |
2925 | int do_obj ATTRIBUTE_UNUSED) | |
2926 | { | |
2927 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) | |
2928 | int i; | |
2929 | #endif | |
2930 | int len; | |
2931 | ||
2932 | if (name == NULL) | |
2933 | return NULL; | |
2934 | ||
2935 | len = strlen (name); | |
2936 | ||
2937 | #ifdef HAVE_TARGET_OBJECT_SUFFIX | |
2938 | /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */ | |
2939 | if (do_obj && len > 2 | |
2940 | && name[len - 2] == '.' | |
2941 | && name[len - 1] == 'o') | |
2942 | { | |
2943 | obstack_grow (&obstack, name, len - 2); | |
2944 | obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX)); | |
2945 | name = XOBFINISH (&obstack, const char *); | |
2946 | } | |
2947 | #endif | |
2948 | ||
2949 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) | |
2950 | /* If there is no filetype, make it the executable suffix (which includes | |
2951 | the "."). But don't get confused if we have just "-o". */ | |
2952 | if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-')) | |
2953 | return name; | |
2954 | ||
2955 | for (i = len - 1; i >= 0; i--) | |
2956 | if (IS_DIR_SEPARATOR (name[i])) | |
2957 | break; | |
2958 | ||
2959 | for (i++; i < len; i++) | |
2960 | if (name[i] == '.') | |
2961 | return name; | |
2962 | ||
2963 | obstack_grow (&obstack, name, len); | |
2964 | obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX, | |
2965 | strlen (TARGET_EXECUTABLE_SUFFIX)); | |
2966 | name = XOBFINISH (&obstack, const char *); | |
2967 | #endif | |
2968 | ||
2969 | return name; | |
2970 | } | |
2971 | #endif | |
2972 | \f | |
2973 | /* Display the command line switches accepted by gcc. */ | |
2974 | static void | |
2975 | display_help (void) | |
2976 | { | |
2977 | printf (_("Usage: %s [options] file...\n"), progname); | |
2978 | fputs (_("Options:\n"), stdout); | |
2979 | ||
2980 | fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout); | |
2981 | fputs (_(" --help Display this information\n"), stdout); | |
2982 | fputs (_(" --target-help Display target specific command line options\n"), stdout); | |
2983 | fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]\n"), stdout); | |
2984 | fputs (_(" Display specific types of command line options\n"), stdout); | |
2985 | if (! verbose_flag) | |
2986 | fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout); | |
2987 | fputs (_(" --version Display compiler version information\n"), stdout); | |
2988 | fputs (_(" -dumpspecs Display all of the built in spec strings\n"), stdout); | |
2989 | fputs (_(" -dumpversion Display the version of the compiler\n"), stdout); | |
2990 | fputs (_(" -dumpmachine Display the compiler's target processor\n"), stdout); | |
2991 | fputs (_(" -print-search-dirs Display the directories in the compiler's search path\n"), stdout); | |
2992 | fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library\n"), stdout); | |
2993 | fputs (_(" -print-file-name=<lib> Display the full path to library <lib>\n"), stdout); | |
2994 | fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>\n"), stdout); | |
5ce9237c JM |
2995 | fputs (_("\ |
2996 | -print-multiarch Display the target's normalized GNU triplet, used as\n\ | |
2997 | a component in the library path\n"), stdout); | |
e4b17023 JM |
2998 | fputs (_(" -print-multi-directory Display the root directory for versions of libgcc\n"), stdout); |
2999 | fputs (_("\ | |
3000 | -print-multi-lib Display the mapping between command line options and\n\ | |
3001 | multiple library search directories\n"), stdout); | |
3002 | fputs (_(" -print-multi-os-directory Display the relative path to OS libraries\n"), stdout); | |
3003 | fputs (_(" -print-sysroot Display the target libraries directory\n"), stdout); | |
3004 | fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers\n"), stdout); | |
3005 | fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler\n"), stdout); | |
3006 | fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n"), stdout); | |
3007 | fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker\n"), stdout); | |
3008 | fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler\n"), stdout); | |
3009 | fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor\n"), stdout); | |
3010 | fputs (_(" -Xlinker <arg> Pass <arg> on to the linker\n"), stdout); | |
3011 | fputs (_(" -save-temps Do not delete intermediate files\n"), stdout); | |
3012 | fputs (_(" -save-temps=<arg> Do not delete intermediate files\n"), stdout); | |
3013 | fputs (_("\ | |
3014 | -no-canonical-prefixes Do not canonicalize paths when building relative\n\ | |
3015 | prefixes to other gcc components\n"), stdout); | |
3016 | fputs (_(" -pipe Use pipes rather than intermediate files\n"), stdout); | |
3017 | fputs (_(" -time Time the execution of each subprocess\n"), stdout); | |
3018 | fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout); | |
3019 | fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout); | |
3020 | fputs (_("\ | |
3021 | --sysroot=<directory> Use <directory> as the root directory for headers\n\ | |
3022 | and libraries\n"), stdout); | |
3023 | fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout); | |
3024 | fputs (_(" -v Display the programs invoked by the compiler\n"), stdout); | |
3025 | fputs (_(" -### Like -v but options quoted and commands not executed\n"), stdout); | |
3026 | fputs (_(" -E Preprocess only; do not compile, assemble or link\n"), stdout); | |
3027 | fputs (_(" -S Compile only; do not assemble or link\n"), stdout); | |
3028 | fputs (_(" -c Compile and assemble, but do not link\n"), stdout); | |
3029 | fputs (_(" -o <file> Place the output into <file>\n"), stdout); | |
3030 | fputs (_(" -pie Create a position independent executable\n"), stdout); | |
3031 | fputs (_(" -shared Create a shared library\n"), stdout); | |
3032 | fputs (_("\ | |
3033 | -x <language> Specify the language of the following input files\n\ | |
3034 | Permissible languages include: c c++ assembler none\n\ | |
3035 | 'none' means revert to the default behavior of\n\ | |
3036 | guessing the language based on the file's extension\n\ | |
3037 | "), stdout); | |
3038 | ||
3039 | printf (_("\ | |
3040 | \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\ | |
3041 | passed on to the various sub-processes invoked by %s. In order to pass\n\ | |
3042 | other options on to these processes the -W<letter> options must be used.\n\ | |
3043 | "), progname); | |
3044 | ||
3045 | /* The rest of the options are displayed by invocations of the various | |
3046 | sub-processes. */ | |
3047 | } | |
3048 | ||
3049 | static void | |
3050 | add_preprocessor_option (const char *option, int len) | |
3051 | { | |
3052 | VEC_safe_push (char_p, heap, preprocessor_options, | |
3053 | save_string (option, len)); | |
3054 | } | |
3055 | ||
3056 | static void | |
3057 | add_assembler_option (const char *option, int len) | |
3058 | { | |
3059 | VEC_safe_push (char_p, heap, assembler_options, save_string (option, len)); | |
3060 | } | |
3061 | ||
3062 | static void | |
3063 | add_linker_option (const char *option, int len) | |
3064 | { | |
3065 | VEC_safe_push (char_p, heap, linker_options, save_string (option, len)); | |
3066 | } | |
3067 | \f | |
3068 | /* Allocate space for an input file in infiles. */ | |
3069 | ||
3070 | static void | |
3071 | alloc_infile (void) | |
3072 | { | |
3073 | if (n_infiles_alloc == 0) | |
3074 | { | |
3075 | n_infiles_alloc = 16; | |
3076 | infiles = XNEWVEC (struct infile, n_infiles_alloc); | |
3077 | } | |
3078 | else if (n_infiles_alloc == n_infiles) | |
3079 | { | |
3080 | n_infiles_alloc *= 2; | |
3081 | infiles = XRESIZEVEC (struct infile, infiles, n_infiles_alloc); | |
3082 | } | |
3083 | } | |
3084 | ||
3085 | /* Store an input file with the given NAME and LANGUAGE in | |
3086 | infiles. */ | |
3087 | ||
3088 | static void | |
3089 | add_infile (const char *name, const char *language) | |
3090 | { | |
3091 | alloc_infile (); | |
3092 | infiles[n_infiles].name = name; | |
3093 | infiles[n_infiles++].language = language; | |
3094 | } | |
3095 | ||
3096 | /* Allocate space for a switch in switches. */ | |
3097 | ||
3098 | static void | |
3099 | alloc_switch (void) | |
3100 | { | |
3101 | if (n_switches_alloc == 0) | |
3102 | { | |
3103 | n_switches_alloc = 16; | |
3104 | switches = XNEWVEC (struct switchstr, n_switches_alloc); | |
3105 | } | |
3106 | else if (n_switches_alloc == n_switches) | |
3107 | { | |
3108 | n_switches_alloc *= 2; | |
3109 | switches = XRESIZEVEC (struct switchstr, switches, n_switches_alloc); | |
3110 | } | |
3111 | } | |
3112 | ||
3113 | /* Save an option OPT with N_ARGS arguments in array ARGS, marking it | |
3114 | as validated if VALIDATED. */ | |
3115 | ||
3116 | static void | |
3117 | save_switch (const char *opt, size_t n_args, const char *const *args, | |
3118 | bool validated) | |
3119 | { | |
3120 | alloc_switch (); | |
3121 | switches[n_switches].part1 = opt + 1; | |
3122 | if (n_args == 0) | |
3123 | switches[n_switches].args = 0; | |
3124 | else | |
3125 | { | |
3126 | switches[n_switches].args = XNEWVEC (const char *, n_args + 1); | |
3127 | memcpy (switches[n_switches].args, args, n_args * sizeof (const char *)); | |
3128 | switches[n_switches].args[n_args] = NULL; | |
3129 | } | |
3130 | ||
3131 | switches[n_switches].live_cond = 0; | |
3132 | switches[n_switches].validated = validated; | |
3133 | switches[n_switches].ordering = 0; | |
3134 | n_switches++; | |
3135 | } | |
3136 | ||
3137 | /* Handle an option DECODED that is unknown to the option-processing | |
3138 | machinery. */ | |
3139 | ||
3140 | static bool | |
3141 | driver_unknown_option_callback (const struct cl_decoded_option *decoded) | |
3142 | { | |
3143 | const char *opt = decoded->arg; | |
3144 | if (opt[1] == 'W' && opt[2] == 'n' && opt[3] == 'o' && opt[4] == '-' | |
3145 | && !(decoded->errors & CL_ERR_NEGATIVE)) | |
3146 | { | |
3147 | /* Leave unknown -Wno-* options for the compiler proper, to be | |
3148 | diagnosed only if there are warnings. */ | |
3149 | save_switch (decoded->canonical_option[0], | |
3150 | decoded->canonical_option_num_elements - 1, | |
3151 | &decoded->canonical_option[1], false); | |
3152 | return false; | |
3153 | } | |
3154 | else | |
3155 | return true; | |
3156 | } | |
3157 | ||
3158 | /* Handle an option DECODED that is not marked as CL_DRIVER. | |
3159 | LANG_MASK will always be CL_DRIVER. */ | |
3160 | ||
3161 | static void | |
3162 | driver_wrong_lang_callback (const struct cl_decoded_option *decoded, | |
3163 | unsigned int lang_mask ATTRIBUTE_UNUSED) | |
3164 | { | |
3165 | /* At this point, non-driver options are accepted (and expected to | |
3166 | be passed down by specs) unless marked to be rejected by the | |
3167 | driver. Options to be rejected by the driver but accepted by the | |
3168 | compilers proper are treated just like completely unknown | |
3169 | options. */ | |
3170 | const struct cl_option *option = &cl_options[decoded->opt_index]; | |
3171 | ||
3172 | if (option->cl_reject_driver) | |
3173 | error ("unrecognized command line option %qs", | |
3174 | decoded->orig_option_with_args_text); | |
3175 | else | |
3176 | save_switch (decoded->canonical_option[0], | |
3177 | decoded->canonical_option_num_elements - 1, | |
3178 | &decoded->canonical_option[1], false); | |
3179 | } | |
3180 | ||
3181 | static const char *spec_lang = 0; | |
3182 | static int last_language_n_infiles; | |
3183 | ||
3184 | /* Handle a driver option; arguments and return value as for | |
3185 | handle_option. */ | |
3186 | ||
3187 | static bool | |
3188 | driver_handle_option (struct gcc_options *opts, | |
3189 | struct gcc_options *opts_set, | |
3190 | const struct cl_decoded_option *decoded, | |
3191 | unsigned int lang_mask ATTRIBUTE_UNUSED, int kind, | |
3192 | location_t loc, | |
3193 | const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED, | |
3194 | diagnostic_context *dc) | |
3195 | { | |
3196 | size_t opt_index = decoded->opt_index; | |
3197 | const char *arg = decoded->arg; | |
3198 | const char *compare_debug_replacement_opt; | |
3199 | int value = decoded->value; | |
3200 | bool validated = false; | |
3201 | bool do_save = true; | |
3202 | ||
3203 | gcc_assert (opts == &global_options); | |
3204 | gcc_assert (opts_set == &global_options_set); | |
3205 | gcc_assert (kind == DK_UNSPECIFIED); | |
3206 | gcc_assert (loc == UNKNOWN_LOCATION); | |
3207 | gcc_assert (dc == global_dc); | |
3208 | ||
3209 | switch (opt_index) | |
3210 | { | |
3211 | case OPT_dumpspecs: | |
3212 | { | |
3213 | struct spec_list *sl; | |
3214 | init_spec (); | |
3215 | for (sl = specs; sl; sl = sl->next) | |
3216 | printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec)); | |
3217 | if (link_command_spec) | |
3218 | printf ("*link_command:\n%s\n\n", link_command_spec); | |
3219 | exit (0); | |
3220 | } | |
3221 | ||
3222 | case OPT_dumpversion: | |
3223 | printf ("%s\n", spec_version); | |
3224 | exit (0); | |
3225 | ||
3226 | case OPT_dumpmachine: | |
3227 | printf ("%s\n", spec_machine); | |
3228 | exit (0); | |
3229 | ||
3230 | case OPT__version: | |
3231 | print_version = 1; | |
3232 | ||
3233 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3234 | if (is_cpp_driver) | |
3235 | add_preprocessor_option ("--version", strlen ("--version")); | |
3236 | add_assembler_option ("--version", strlen ("--version")); | |
3237 | add_linker_option ("--version", strlen ("--version")); | |
3238 | break; | |
3239 | ||
3240 | case OPT__help: | |
3241 | print_help_list = 1; | |
3242 | ||
3243 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3244 | if (is_cpp_driver) | |
3245 | add_preprocessor_option ("--help", 6); | |
3246 | add_assembler_option ("--help", 6); | |
3247 | add_linker_option ("--help", 6); | |
3248 | break; | |
3249 | ||
3250 | case OPT__help_: | |
3251 | print_subprocess_help = 2; | |
3252 | break; | |
3253 | ||
3254 | case OPT__target_help: | |
3255 | print_subprocess_help = 1; | |
3256 | ||
3257 | /* CPP driver cannot obtain switch from cc1_options. */ | |
3258 | if (is_cpp_driver) | |
3259 | add_preprocessor_option ("--target-help", 13); | |
3260 | add_assembler_option ("--target-help", 13); | |
3261 | add_linker_option ("--target-help", 13); | |
3262 | break; | |
3263 | ||
3264 | case OPT_pass_exit_codes: | |
3265 | case OPT_print_search_dirs: | |
3266 | case OPT_print_file_name_: | |
3267 | case OPT_print_prog_name_: | |
3268 | case OPT_print_multi_lib: | |
3269 | case OPT_print_multi_directory: | |
3270 | case OPT_print_sysroot: | |
3271 | case OPT_print_multi_os_directory: | |
5ce9237c | 3272 | case OPT_print_multiarch: |
e4b17023 JM |
3273 | case OPT_print_sysroot_headers_suffix: |
3274 | case OPT_time: | |
3275 | case OPT_wrapper: | |
3276 | /* These options set the variables specified in common.opt | |
3277 | automatically, and do not need to be saved for spec | |
3278 | processing. */ | |
3279 | do_save = false; | |
3280 | break; | |
3281 | ||
3282 | case OPT_print_libgcc_file_name: | |
3283 | print_file_name = "libgcc.a"; | |
3284 | do_save = false; | |
3285 | break; | |
3286 | ||
3287 | case OPT_fcompare_debug_second: | |
3288 | compare_debug_second = 1; | |
3289 | break; | |
3290 | ||
3291 | case OPT_fcompare_debug: | |
3292 | switch (value) | |
3293 | { | |
3294 | case 0: | |
3295 | compare_debug_replacement_opt = "-fcompare-debug="; | |
3296 | arg = ""; | |
3297 | goto compare_debug_with_arg; | |
3298 | ||
3299 | case 1: | |
3300 | compare_debug_replacement_opt = "-fcompare-debug=-gtoggle"; | |
3301 | arg = "-gtoggle"; | |
3302 | goto compare_debug_with_arg; | |
3303 | ||
3304 | default: | |
3305 | gcc_unreachable (); | |
3306 | } | |
3307 | break; | |
3308 | ||
3309 | case OPT_fcompare_debug_: | |
3310 | compare_debug_replacement_opt = decoded->canonical_option[0]; | |
3311 | compare_debug_with_arg: | |
3312 | gcc_assert (decoded->canonical_option_num_elements == 1); | |
3313 | gcc_assert (arg != NULL); | |
3314 | if (*arg) | |
3315 | compare_debug = 1; | |
3316 | else | |
3317 | compare_debug = -1; | |
3318 | if (compare_debug < 0) | |
3319 | compare_debug_opt = NULL; | |
3320 | else | |
3321 | compare_debug_opt = arg; | |
3322 | save_switch (compare_debug_replacement_opt, 0, NULL, validated); | |
3323 | return true; | |
3324 | ||
3325 | case OPT_Wa_: | |
3326 | { | |
3327 | int prev, j; | |
3328 | /* Pass the rest of this option to the assembler. */ | |
3329 | ||
3330 | /* Split the argument at commas. */ | |
3331 | prev = 0; | |
3332 | for (j = 0; arg[j]; j++) | |
3333 | if (arg[j] == ',') | |
3334 | { | |
3335 | add_assembler_option (arg + prev, j - prev); | |
3336 | prev = j + 1; | |
3337 | } | |
3338 | ||
3339 | /* Record the part after the last comma. */ | |
3340 | add_assembler_option (arg + prev, j - prev); | |
3341 | } | |
3342 | do_save = false; | |
3343 | break; | |
3344 | ||
3345 | case OPT_Wp_: | |
3346 | { | |
3347 | int prev, j; | |
3348 | /* Pass the rest of this option to the preprocessor. */ | |
3349 | ||
3350 | /* Split the argument at commas. */ | |
3351 | prev = 0; | |
3352 | for (j = 0; arg[j]; j++) | |
3353 | if (arg[j] == ',') | |
3354 | { | |
3355 | add_preprocessor_option (arg + prev, j - prev); | |
3356 | prev = j + 1; | |
3357 | } | |
3358 | ||
3359 | /* Record the part after the last comma. */ | |
3360 | add_preprocessor_option (arg + prev, j - prev); | |
3361 | } | |
3362 | do_save = false; | |
3363 | break; | |
3364 | ||
3365 | case OPT_Wl_: | |
3366 | { | |
3367 | int prev, j; | |
3368 | /* Split the argument at commas. */ | |
3369 | prev = 0; | |
3370 | for (j = 0; arg[j]; j++) | |
3371 | if (arg[j] == ',') | |
3372 | { | |
3373 | add_infile (save_string (arg + prev, j - prev), "*"); | |
3374 | prev = j + 1; | |
3375 | } | |
3376 | /* Record the part after the last comma. */ | |
3377 | add_infile (arg + prev, "*"); | |
3378 | } | |
3379 | do_save = false; | |
3380 | break; | |
3381 | ||
3382 | case OPT_Xlinker: | |
3383 | add_infile (arg, "*"); | |
3384 | do_save = false; | |
3385 | break; | |
3386 | ||
3387 | case OPT_Xpreprocessor: | |
3388 | add_preprocessor_option (arg, strlen (arg)); | |
3389 | do_save = false; | |
3390 | break; | |
3391 | ||
3392 | case OPT_Xassembler: | |
3393 | add_assembler_option (arg, strlen (arg)); | |
3394 | do_save = false; | |
3395 | break; | |
3396 | ||
3397 | case OPT_l: | |
3398 | /* POSIX allows separation of -l and the lib arg; canonicalize | |
3399 | by concatenating -l with its arg */ | |
3400 | add_infile (concat ("-l", arg, NULL), "*"); | |
3401 | do_save = false; | |
3402 | break; | |
3403 | ||
3404 | case OPT_L: | |
3405 | /* Similarly, canonicalize -L for linkers that may not accept | |
3406 | separate arguments. */ | |
3407 | save_switch (concat ("-L", arg, NULL), 0, NULL, validated); | |
3408 | return true; | |
3409 | ||
3410 | case OPT_F: | |
3411 | /* Likewise -F. */ | |
3412 | save_switch (concat ("-F", arg, NULL), 0, NULL, validated); | |
3413 | return true; | |
3414 | ||
3415 | case OPT_save_temps: | |
3416 | save_temps_flag = SAVE_TEMPS_CWD; | |
3417 | validated = true; | |
3418 | break; | |
3419 | ||
3420 | case OPT_save_temps_: | |
3421 | if (strcmp (arg, "cwd") == 0) | |
3422 | save_temps_flag = SAVE_TEMPS_CWD; | |
3423 | else if (strcmp (arg, "obj") == 0 | |
3424 | || strcmp (arg, "object") == 0) | |
3425 | save_temps_flag = SAVE_TEMPS_OBJ; | |
2bbc7733 | 3426 | else if (strcmp (arg, "objects") == 0) |
3427 | save_temps_flag = SAVE_TEMPS_OBJZ; | |
e4b17023 JM |
3428 | else |
3429 | fatal_error ("%qs is an unknown -save-temps option", | |
3430 | decoded->orig_option_with_args_text); | |
3431 | break; | |
3432 | ||
3433 | case OPT_no_canonical_prefixes: | |
3434 | /* Already handled as a special case, so ignored here. */ | |
3435 | do_save = false; | |
3436 | break; | |
3437 | ||
3438 | case OPT_pipe: | |
3439 | validated = true; | |
3440 | /* These options set the variables specified in common.opt | |
3441 | automatically, but do need to be saved for spec | |
3442 | processing. */ | |
3443 | break; | |
3444 | ||
3445 | case OPT_specs_: | |
3446 | { | |
3447 | struct user_specs *user = XNEW (struct user_specs); | |
3448 | ||
3449 | user->next = (struct user_specs *) 0; | |
3450 | user->filename = arg; | |
3451 | if (user_specs_tail) | |
3452 | user_specs_tail->next = user; | |
3453 | else | |
3454 | user_specs_head = user; | |
3455 | user_specs_tail = user; | |
3456 | } | |
3457 | do_save = false; | |
3458 | break; | |
3459 | ||
3460 | case OPT__sysroot_: | |
3461 | target_system_root = arg; | |
3462 | target_system_root_changed = 1; | |
3463 | do_save = false; | |
3464 | break; | |
3465 | ||
3466 | case OPT_time_: | |
3467 | if (report_times_to_file) | |
3468 | fclose (report_times_to_file); | |
3469 | report_times_to_file = fopen (arg, "a"); | |
3470 | do_save = false; | |
3471 | break; | |
3472 | ||
3473 | case OPT____: | |
3474 | /* "-###" | |
3475 | This is similar to -v except that there is no execution | |
3476 | of the commands and the echoed arguments are quoted. It | |
3477 | is intended for use in shell scripts to capture the | |
3478 | driver-generated command line. */ | |
3479 | verbose_only_flag++; | |
3480 | verbose_flag = 1; | |
3481 | do_save = false; | |
3482 | break; | |
3483 | ||
3484 | case OPT_B: | |
3485 | { | |
3486 | size_t len = strlen (arg); | |
3487 | ||
3488 | /* Catch the case where the user has forgotten to append a | |
3489 | directory separator to the path. Note, they may be using | |
3490 | -B to add an executable name prefix, eg "i386-elf-", in | |
3491 | order to distinguish between multiple installations of | |
3492 | GCC in the same directory. Hence we must check to see | |
3493 | if appending a directory separator actually makes a | |
3494 | valid directory name. */ | |
3495 | if (!IS_DIR_SEPARATOR (arg[len - 1]) | |
3496 | && is_directory (arg, false)) | |
3497 | { | |
3498 | char *tmp = XNEWVEC (char, len + 2); | |
3499 | strcpy (tmp, arg); | |
3500 | tmp[len] = DIR_SEPARATOR; | |
3501 | tmp[++len] = 0; | |
3502 | arg = tmp; | |
3503 | } | |
3504 | ||
3505 | add_prefix (&exec_prefixes, arg, NULL, | |
3506 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
3507 | add_prefix (&startfile_prefixes, arg, NULL, | |
3508 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
3509 | add_prefix (&include_prefixes, arg, NULL, | |
3510 | PREFIX_PRIORITY_B_OPT, 0, 0); | |
3511 | } | |
3512 | validated = true; | |
3513 | break; | |
3514 | ||
3515 | case OPT_x: | |
3516 | spec_lang = arg; | |
3517 | if (!strcmp (spec_lang, "none")) | |
3518 | /* Suppress the warning if -xnone comes after the last input | |
3519 | file, because alternate command interfaces like g++ might | |
3520 | find it useful to place -xnone after each input file. */ | |
3521 | spec_lang = 0; | |
3522 | else | |
3523 | last_language_n_infiles = n_infiles; | |
3524 | do_save = false; | |
3525 | break; | |
3526 | ||
3527 | case OPT_o: | |
3528 | have_o = 1; | |
3529 | #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX) | |
3530 | arg = convert_filename (arg, ! have_c, 0); | |
3531 | #endif | |
3532 | /* Save the output name in case -save-temps=obj was used. */ | |
3533 | save_temps_prefix = xstrdup (arg); | |
3534 | /* On some systems, ld cannot handle "-o" without a space. So | |
3535 | split the option from its argument. */ | |
3536 | save_switch ("-o", 1, &arg, validated); | |
3537 | return true; | |
3538 | ||
3539 | case OPT_static_libgcc: | |
3540 | case OPT_shared_libgcc: | |
3541 | case OPT_static_libgfortran: | |
3542 | case OPT_static_libstdc__: | |
3543 | /* These are always valid, since gcc.c itself understands the | |
3544 | first two, gfortranspec.c understands -static-libgfortran and | |
3545 | g++spec.c understands -static-libstdc++ */ | |
3546 | validated = true; | |
3547 | break; | |
3548 | ||
3549 | default: | |
3550 | /* Various driver options need no special processing at this | |
3551 | point, having been handled in a prescan above or being | |
3552 | handled by specs. */ | |
3553 | break; | |
3554 | } | |
3555 | ||
3556 | if (do_save) | |
3557 | save_switch (decoded->canonical_option[0], | |
3558 | decoded->canonical_option_num_elements - 1, | |
3559 | &decoded->canonical_option[1], validated); | |
3560 | return true; | |
3561 | } | |
3562 | ||
3563 | /* Put the driver's standard set of option handlers in *HANDLERS. */ | |
3564 | ||
3565 | static void | |
3566 | set_option_handlers (struct cl_option_handlers *handlers) | |
3567 | { | |
3568 | handlers->unknown_option_callback = driver_unknown_option_callback; | |
3569 | handlers->wrong_lang_callback = driver_wrong_lang_callback; | |
3570 | handlers->num_handlers = 3; | |
3571 | handlers->handlers[0].handler = driver_handle_option; | |
3572 | handlers->handlers[0].mask = CL_DRIVER; | |
3573 | handlers->handlers[1].handler = common_handle_option; | |
3574 | handlers->handlers[1].mask = CL_COMMON; | |
3575 | handlers->handlers[2].handler = target_handle_option; | |
3576 | handlers->handlers[2].mask = CL_TARGET; | |
3577 | } | |
3578 | ||
3579 | /* Create the vector `switches' and its contents. | |
3580 | Store its length in `n_switches'. */ | |
3581 | ||
3582 | static void | |
3583 | process_command (unsigned int decoded_options_count, | |
3584 | struct cl_decoded_option *decoded_options) | |
3585 | { | |
3586 | const char *temp; | |
3587 | char *temp1; | |
3588 | const char *tooldir_prefix; | |
3589 | char *(*get_relative_prefix) (const char *, const char *, | |
3590 | const char *) = NULL; | |
3591 | struct cl_option_handlers handlers; | |
3592 | unsigned int j; | |
3593 | ||
3594 | gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX"); | |
3595 | ||
3596 | n_switches = 0; | |
3597 | n_infiles = 0; | |
3598 | added_libraries = 0; | |
3599 | ||
3600 | /* Figure compiler version from version string. */ | |
3601 | ||
3602 | compiler_version = temp1 = xstrdup (version_string); | |
3603 | ||
3604 | for (; *temp1; ++temp1) | |
3605 | { | |
3606 | if (*temp1 == ' ') | |
3607 | { | |
3608 | *temp1 = '\0'; | |
3609 | break; | |
3610 | } | |
3611 | } | |
3612 | ||
3613 | /* Handle any -no-canonical-prefixes flag early, to assign the function | |
3614 | that builds relative prefixes. This function creates default search | |
3615 | paths that are needed later in normal option handling. */ | |
3616 | ||
3617 | for (j = 1; j < decoded_options_count; j++) | |
3618 | { | |
3619 | if (decoded_options[j].opt_index == OPT_no_canonical_prefixes) | |
3620 | { | |
3621 | get_relative_prefix = make_relative_prefix_ignore_links; | |
3622 | break; | |
3623 | } | |
3624 | } | |
3625 | if (! get_relative_prefix) | |
3626 | get_relative_prefix = make_relative_prefix; | |
3627 | ||
3628 | /* Set up the default search paths. If there is no GCC_EXEC_PREFIX, | |
3629 | see if we can create it from the pathname specified in | |
3630 | decoded_options[0].arg. */ | |
3631 | ||
3632 | gcc_libexec_prefix = standard_libexec_prefix; | |
3633 | #ifndef VMS | |
3634 | /* FIXME: make_relative_prefix doesn't yet work for VMS. */ | |
3635 | if (!gcc_exec_prefix) | |
3636 | { | |
fdc4107c | 3637 | #if 0 /* Never use relative prefix (not bootstrapped) */ |
e4b17023 JM |
3638 | gcc_exec_prefix = get_relative_prefix (decoded_options[0].arg, |
3639 | standard_bindir_prefix, | |
3640 | standard_exec_prefix); | |
3641 | gcc_libexec_prefix = get_relative_prefix (decoded_options[0].arg, | |
3642 | standard_bindir_prefix, | |
3643 | standard_libexec_prefix); | |
3644 | if (gcc_exec_prefix) | |
3645 | xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL)); | |
fdc4107c | 3646 | #endif |
e4b17023 JM |
3647 | } |
3648 | else | |
3649 | { | |
3650 | /* make_relative_prefix requires a program name, but | |
3651 | GCC_EXEC_PREFIX is typically a directory name with a trailing | |
3652 | / (which is ignored by make_relative_prefix), so append a | |
3653 | program name. */ | |
3654 | char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL); | |
3655 | gcc_libexec_prefix = get_relative_prefix (tmp_prefix, | |
3656 | standard_exec_prefix, | |
3657 | standard_libexec_prefix); | |
3658 | ||
3659 | /* The path is unrelocated, so fallback to the original setting. */ | |
3660 | if (!gcc_libexec_prefix) | |
3661 | gcc_libexec_prefix = standard_libexec_prefix; | |
3662 | ||
3663 | free (tmp_prefix); | |
3664 | } | |
3665 | #else | |
3666 | #endif | |
3667 | /* From this point onward, gcc_exec_prefix is non-null if the toolchain | |
3668 | is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX | |
3669 | or an automatically created GCC_EXEC_PREFIX from | |
3670 | decoded_options[0].arg. */ | |
3671 | ||
3672 | /* Do language-specific adjustment/addition of flags. */ | |
3673 | lang_specific_driver (&decoded_options, &decoded_options_count, | |
3674 | &added_libraries); | |
3675 | ||
3676 | if (gcc_exec_prefix) | |
3677 | { | |
3678 | int len = strlen (gcc_exec_prefix); | |
3679 | ||
3680 | if (len > (int) sizeof ("/lib/gcc/") - 1 | |
3681 | && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1]))) | |
3682 | { | |
3683 | temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1; | |
3684 | if (IS_DIR_SEPARATOR (*temp) | |
3685 | && filename_ncmp (temp + 1, "lib", 3) == 0 | |
3686 | && IS_DIR_SEPARATOR (temp[4]) | |
3687 | && filename_ncmp (temp + 5, "gcc", 3) == 0) | |
3688 | len -= sizeof ("/lib/gcc/") - 1; | |
3689 | } | |
3690 | ||
fdc4107c | 3691 | #if 0 /* Bad Paths */ |
e4b17023 JM |
3692 | set_std_prefix (gcc_exec_prefix, len); |
3693 | add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC", | |
3694 | PREFIX_PRIORITY_LAST, 0, 0); | |
3695 | add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", | |
3696 | PREFIX_PRIORITY_LAST, 0, 0); | |
fdc4107c | 3697 | #endif |
e4b17023 JM |
3698 | } |
3699 | ||
3700 | /* COMPILER_PATH and LIBRARY_PATH have values | |
3701 | that are lists of directory names with colons. */ | |
3702 | ||
3703 | temp = getenv ("COMPILER_PATH"); | |
3704 | if (temp) | |
3705 | { | |
3706 | const char *startp, *endp; | |
3707 | char *nstore = (char *) alloca (strlen (temp) + 3); | |
3708 | ||
3709 | startp = endp = temp; | |
3710 | while (1) | |
3711 | { | |
3712 | if (*endp == PATH_SEPARATOR || *endp == 0) | |
3713 | { | |
3714 | strncpy (nstore, startp, endp - startp); | |
3715 | if (endp == startp) | |
3716 | strcpy (nstore, concat (".", dir_separator_str, NULL)); | |
3717 | else if (!IS_DIR_SEPARATOR (endp[-1])) | |
3718 | { | |
3719 | nstore[endp - startp] = DIR_SEPARATOR; | |
3720 | nstore[endp - startp + 1] = 0; | |
3721 | } | |
3722 | else | |
3723 | nstore[endp - startp] = 0; | |
3724 | add_prefix (&exec_prefixes, nstore, 0, | |
3725 | PREFIX_PRIORITY_LAST, 0, 0); | |
3726 | add_prefix (&include_prefixes, nstore, 0, | |
3727 | PREFIX_PRIORITY_LAST, 0, 0); | |
3728 | if (*endp == 0) | |
3729 | break; | |
3730 | endp = startp = endp + 1; | |
3731 | } | |
3732 | else | |
3733 | endp++; | |
3734 | } | |
3735 | } | |
3736 | ||
3737 | temp = getenv (LIBRARY_PATH_ENV); | |
3738 | if (temp && *cross_compile == '0') | |
3739 | { | |
3740 | const char *startp, *endp; | |
3741 | char *nstore = (char *) alloca (strlen (temp) + 3); | |
3742 | ||
3743 | startp = endp = temp; | |
3744 | while (1) | |
3745 | { | |
3746 | if (*endp == PATH_SEPARATOR || *endp == 0) | |
3747 | { | |
3748 | strncpy (nstore, startp, endp - startp); | |
3749 | if (endp == startp) | |
3750 | strcpy (nstore, concat (".", dir_separator_str, NULL)); | |
3751 | else if (!IS_DIR_SEPARATOR (endp[-1])) | |
3752 | { | |
3753 | nstore[endp - startp] = DIR_SEPARATOR; | |
3754 | nstore[endp - startp + 1] = 0; | |
3755 | } | |
3756 | else | |
3757 | nstore[endp - startp] = 0; | |
3758 | add_prefix (&startfile_prefixes, nstore, NULL, | |
3759 | PREFIX_PRIORITY_LAST, 0, 1); | |
3760 | if (*endp == 0) | |
3761 | break; | |
3762 | endp = startp = endp + 1; | |
3763 | } | |
3764 | else | |
3765 | endp++; | |
3766 | } | |
3767 | } | |
3768 | ||
3769 | /* Use LPATH like LIBRARY_PATH (for the CMU build program). */ | |
3770 | temp = getenv ("LPATH"); | |
3771 | if (temp && *cross_compile == '0') | |
3772 | { | |
3773 | const char *startp, *endp; | |
3774 | char *nstore = (char *) alloca (strlen (temp) + 3); | |
3775 | ||
3776 | startp = endp = temp; | |
3777 | while (1) | |
3778 | { | |
3779 | if (*endp == PATH_SEPARATOR || *endp == 0) | |
3780 | { | |
3781 | strncpy (nstore, startp, endp - startp); | |
3782 | if (endp == startp) | |
3783 | strcpy (nstore, concat (".", dir_separator_str, NULL)); | |
3784 | else if (!IS_DIR_SEPARATOR (endp[-1])) | |
3785 | { | |
3786 | nstore[endp - startp] = DIR_SEPARATOR; | |
3787 | nstore[endp - startp + 1] = 0; | |
3788 | } | |
3789 | else | |
3790 | nstore[endp - startp] = 0; | |
3791 | add_prefix (&startfile_prefixes, nstore, NULL, | |
3792 | PREFIX_PRIORITY_LAST, 0, 1); | |
3793 | if (*endp == 0) | |
3794 | break; | |
3795 | endp = startp = endp + 1; | |
3796 | } | |
3797 | else | |
3798 | endp++; | |
3799 | } | |
3800 | } | |
3801 | ||
3802 | /* Process the options and store input files and switches in their | |
3803 | vectors. */ | |
3804 | ||
3805 | last_language_n_infiles = -1; | |
3806 | ||
3807 | set_option_handlers (&handlers); | |
3808 | ||
3809 | for (j = 1; j < decoded_options_count; j++) | |
3810 | { | |
3811 | switch (decoded_options[j].opt_index) | |
3812 | { | |
3813 | case OPT_S: | |
3814 | case OPT_c: | |
3815 | case OPT_E: | |
3816 | have_c = 1; | |
3817 | break; | |
3818 | } | |
3819 | if (have_c) | |
3820 | break; | |
3821 | } | |
3822 | ||
3823 | for (j = 1; j < decoded_options_count; j++) | |
3824 | { | |
3825 | if (decoded_options[j].opt_index == OPT_SPECIAL_input_file) | |
3826 | { | |
3827 | const char *arg = decoded_options[j].arg; | |
3828 | const char *p = strrchr (arg, '@'); | |
3829 | char *fname; | |
3830 | long offset; | |
3831 | int consumed; | |
3832 | #ifdef HAVE_TARGET_OBJECT_SUFFIX | |
3833 | arg = convert_filename (arg, 0, access (arg, F_OK)); | |
3834 | #endif | |
3835 | /* For LTO static archive support we handle input file | |
3836 | specifications that are composed of a filename and | |
3837 | an offset like FNAME@OFFSET. */ | |
3838 | if (p | |
3839 | && p != arg | |
3840 | && sscanf (p, "@%li%n", &offset, &consumed) >= 1 | |
3841 | && strlen (p) == (unsigned int)consumed) | |
3842 | { | |
3843 | fname = (char *)xmalloc (p - arg + 1); | |
3844 | memcpy (fname, arg, p - arg); | |
3845 | fname[p - arg] = '\0'; | |
3846 | /* Only accept non-stdin and existing FNAME parts, otherwise | |
3847 | try with the full name. */ | |
3848 | if (strcmp (fname, "-") == 0 || access (fname, F_OK) < 0) | |
3849 | { | |
3850 | free (fname); | |
3851 | fname = xstrdup (arg); | |
3852 | } | |
3853 | } | |
3854 | else | |
3855 | fname = xstrdup (arg); | |
3856 | ||
3857 | if (strcmp (fname, "-") != 0 && access (fname, F_OK) < 0) | |
3858 | perror_with_name (fname); | |
3859 | else | |
3860 | add_infile (arg, spec_lang); | |
3861 | ||
3862 | free (fname); | |
3863 | continue; | |
3864 | } | |
3865 | ||
3866 | read_cmdline_option (&global_options, &global_options_set, | |
3867 | decoded_options + j, UNKNOWN_LOCATION, | |
3868 | CL_DRIVER, &handlers, global_dc); | |
3869 | } | |
3870 | ||
3871 | /* If -save-temps=obj and -o name, create the prefix to use for %b. | |
3872 | Otherwise just make -save-temps=obj the same as -save-temps=cwd. */ | |
3873 | if (save_temps_flag == SAVE_TEMPS_OBJ && save_temps_prefix != NULL) | |
3874 | { | |
3875 | save_temps_length = strlen (save_temps_prefix); | |
3876 | temp = strrchr (lbasename (save_temps_prefix), '.'); | |
3877 | if (temp) | |
3878 | { | |
3879 | save_temps_length -= strlen (temp); | |
3880 | save_temps_prefix[save_temps_length] = '\0'; | |
3881 | } | |
3882 | ||
3883 | } | |
2bbc7733 | 3884 | else if (save_temps_flag == SAVE_TEMPS_OBJZ && save_temps_prefix != NULL) |
3885 | { | |
3886 | save_temps_length = strlen (save_temps_prefix); | |
3887 | } | |
e4b17023 JM |
3888 | else if (save_temps_prefix != NULL) |
3889 | { | |
3890 | free (save_temps_prefix); | |
3891 | save_temps_prefix = NULL; | |
3892 | } | |
3893 | ||
3894 | if (save_temps_flag && use_pipes) | |
3895 | { | |
3896 | /* -save-temps overrides -pipe, so that temp files are produced */ | |
3897 | if (save_temps_flag) | |
3898 | warning (0, "-pipe ignored because -save-temps specified"); | |
3899 | use_pipes = 0; | |
3900 | } | |
3901 | ||
3902 | if (!compare_debug) | |
3903 | { | |
3904 | const char *gcd = getenv ("GCC_COMPARE_DEBUG"); | |
3905 | ||
3906 | if (gcd && gcd[0] == '-') | |
3907 | { | |
3908 | compare_debug = 2; | |
3909 | compare_debug_opt = gcd; | |
3910 | } | |
3911 | else if (gcd && *gcd && strcmp (gcd, "0")) | |
3912 | { | |
3913 | compare_debug = 3; | |
3914 | compare_debug_opt = "-gtoggle"; | |
3915 | } | |
3916 | } | |
3917 | else if (compare_debug < 0) | |
3918 | { | |
3919 | compare_debug = 0; | |
3920 | gcc_assert (!compare_debug_opt); | |
3921 | } | |
3922 | ||
3923 | /* Set up the search paths. We add directories that we expect to | |
3924 | contain GNU Toolchain components before directories specified by | |
3925 | the machine description so that we will find GNU components (like | |
3926 | the GNU assembler) before those of the host system. */ | |
3927 | ||
3928 | /* If we don't know where the toolchain has been installed, use the | |
3929 | configured-in locations. */ | |
3930 | if (!gcc_exec_prefix) | |
3931 | { | |
3932 | #ifndef OS2 | |
fdc4107c JM |
3933 | add_prefix (&exec_prefixes, standard_libexec_prefix, NULL, |
3934 | PREFIX_PRIORITY_LAST, 0, 0); | |
3935 | #if 0 /* Bad paths */ | |
e4b17023 JM |
3936 | add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC", |
3937 | PREFIX_PRIORITY_LAST, 1, 0); | |
3938 | add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS", | |
3939 | PREFIX_PRIORITY_LAST, 2, 0); | |
3940 | add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS", | |
3941 | PREFIX_PRIORITY_LAST, 2, 0); | |
3942 | #endif | |
fdc4107c JM |
3943 | #endif |
3944 | #if 0 /* Bad paths */ | |
e4b17023 JM |
3945 | add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS", |
3946 | PREFIX_PRIORITY_LAST, 1, 0); | |
fdc4107c | 3947 | #endif |
e4b17023 JM |
3948 | } |
3949 | ||
3950 | gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix)); | |
3951 | tooldir_prefix = concat (tooldir_base_prefix, spec_machine, | |
3952 | dir_separator_str, NULL); | |
3953 | ||
3954 | /* Look for tools relative to the location from which the driver is | |
3955 | running, or, if that is not available, the configured prefix. */ | |
3956 | tooldir_prefix | |
3957 | = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix, | |
3958 | spec_machine, dir_separator_str, | |
3959 | spec_version, dir_separator_str, tooldir_prefix, NULL); | |
3960 | ||
fdc4107c | 3961 | #if 0 /* Bad paths */ |
e4b17023 JM |
3962 | add_prefix (&exec_prefixes, |
3963 | concat (tooldir_prefix, "bin", dir_separator_str, NULL), | |
3964 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0); | |
3965 | add_prefix (&startfile_prefixes, | |
3966 | concat (tooldir_prefix, "lib", dir_separator_str, NULL), | |
3967 | "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1); | |
fdc4107c | 3968 | #endif |
e4b17023 JM |
3969 | |
3970 | #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS) | |
3971 | /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix, | |
3972 | then consider it to relocate with the rest of the GCC installation | |
3973 | if GCC_EXEC_PREFIX is set. | |
3974 | ``make_relative_prefix'' is not compiled for VMS, so don't call it. */ | |
3975 | if (target_system_root && !target_system_root_changed && gcc_exec_prefix) | |
3976 | { | |
3977 | char *tmp_prefix = get_relative_prefix (decoded_options[0].arg, | |
3978 | standard_bindir_prefix, | |
3979 | target_system_root); | |
3980 | if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0) | |
3981 | { | |
3982 | target_system_root = tmp_prefix; | |
3983 | target_system_root_changed = 1; | |
3984 | } | |
3985 | } | |
3986 | #endif | |
3987 | ||
3988 | /* More prefixes are enabled in main, after we read the specs file | |
3989 | and determine whether this is cross-compilation or not. */ | |
3990 | ||
3991 | if (n_infiles == last_language_n_infiles && spec_lang != 0) | |
3992 | warning (0, "%<-x %s%> after last input file has no effect", spec_lang); | |
3993 | ||
3994 | if (compare_debug == 2 || compare_debug == 3) | |
3995 | { | |
3996 | alloc_switch (); | |
3997 | switches[n_switches].part1 = concat ("fcompare-debug=", | |
3998 | compare_debug_opt, | |
3999 | NULL); | |
4000 | switches[n_switches].args = 0; | |
4001 | switches[n_switches].live_cond = 0; | |
4002 | switches[n_switches].validated = 0; | |
4003 | switches[n_switches].ordering = 0; | |
4004 | n_switches++; | |
4005 | compare_debug = 1; | |
4006 | } | |
4007 | ||
4008 | /* Ensure we only invoke each subprocess once. */ | |
4009 | if (print_subprocess_help || print_help_list || print_version) | |
4010 | { | |
4011 | n_infiles = 0; | |
4012 | ||
4013 | /* Create a dummy input file, so that we can pass | |
4014 | the help option on to the various sub-processes. */ | |
4015 | add_infile ("help-dummy", "c"); | |
4016 | } | |
4017 | ||
4018 | alloc_switch (); | |
4019 | switches[n_switches].part1 = 0; | |
4020 | alloc_infile (); | |
4021 | infiles[n_infiles].name = 0; | |
4022 | } | |
4023 | ||
4024 | /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS | |
4025 | and place that in the environment. */ | |
4026 | ||
4027 | static void | |
4028 | set_collect_gcc_options (void) | |
4029 | { | |
4030 | int i; | |
4031 | int first_time; | |
4032 | ||
4033 | /* Build COLLECT_GCC_OPTIONS to have all of the options specified to | |
4034 | the compiler. */ | |
4035 | obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=", | |
4036 | sizeof ("COLLECT_GCC_OPTIONS=") - 1); | |
4037 | ||
4038 | first_time = TRUE; | |
4039 | for (i = 0; (int) i < n_switches; i++) | |
4040 | { | |
4041 | const char *const *args; | |
4042 | const char *p, *q; | |
4043 | if (!first_time) | |
4044 | obstack_grow (&collect_obstack, " ", 1); | |
4045 | ||
4046 | first_time = FALSE; | |
4047 | ||
4048 | /* Ignore elided switches. */ | |
4049 | if ((switches[i].live_cond | |
4050 | & (SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC)) | |
4051 | == SWITCH_IGNORE) | |
4052 | continue; | |
4053 | ||
4054 | obstack_grow (&collect_obstack, "'-", 2); | |
4055 | q = switches[i].part1; | |
4056 | while ((p = strchr (q, '\''))) | |
4057 | { | |
4058 | obstack_grow (&collect_obstack, q, p - q); | |
4059 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4060 | q = ++p; | |
4061 | } | |
4062 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4063 | obstack_grow (&collect_obstack, "'", 1); | |
4064 | ||
4065 | for (args = switches[i].args; args && *args; args++) | |
4066 | { | |
4067 | obstack_grow (&collect_obstack, " '", 2); | |
4068 | q = *args; | |
4069 | while ((p = strchr (q, '\''))) | |
4070 | { | |
4071 | obstack_grow (&collect_obstack, q, p - q); | |
4072 | obstack_grow (&collect_obstack, "'\\''", 4); | |
4073 | q = ++p; | |
4074 | } | |
4075 | obstack_grow (&collect_obstack, q, strlen (q)); | |
4076 | obstack_grow (&collect_obstack, "'", 1); | |
4077 | } | |
4078 | } | |
4079 | obstack_grow (&collect_obstack, "\0", 1); | |
4080 | xputenv (XOBFINISH (&collect_obstack, char *)); | |
4081 | } | |
4082 | \f | |
4083 | /* Process a spec string, accumulating and running commands. */ | |
4084 | ||
4085 | /* These variables describe the input file name. | |
4086 | input_file_number is the index on outfiles of this file, | |
4087 | so that the output file name can be stored for later use by %o. | |
4088 | input_basename is the start of the part of the input file | |
4089 | sans all directory names, and basename_length is the number | |
4090 | of characters starting there excluding the suffix .c or whatever. */ | |
4091 | ||
4092 | static const char *gcc_input_filename; | |
4093 | static int input_file_number; | |
4094 | size_t input_filename_length; | |
4095 | static int basename_length; | |
4096 | static int suffixed_basename_length; | |
4097 | static const char *input_basename; | |
4098 | static const char *input_suffix; | |
4099 | #ifndef HOST_LACKS_INODE_NUMBERS | |
4100 | static struct stat input_stat; | |
4101 | #endif | |
4102 | static int input_stat_set; | |
4103 | ||
4104 | /* The compiler used to process the current input file. */ | |
4105 | static struct compiler *input_file_compiler; | |
4106 | ||
4107 | /* These are variables used within do_spec and do_spec_1. */ | |
4108 | ||
4109 | /* Nonzero if an arg has been started and not yet terminated | |
4110 | (with space, tab or newline). */ | |
4111 | static int arg_going; | |
4112 | ||
4113 | /* Nonzero means %d or %g has been seen; the next arg to be terminated | |
4114 | is a temporary file name. */ | |
4115 | static int delete_this_arg; | |
4116 | ||
4117 | /* Nonzero means %w has been seen; the next arg to be terminated | |
4118 | is the output file name of this compilation. */ | |
4119 | static int this_is_output_file; | |
4120 | ||
4121 | /* Nonzero means %s has been seen; the next arg to be terminated | |
4122 | is the name of a library file and we should try the standard | |
4123 | search dirs for it. */ | |
4124 | static int this_is_library_file; | |
4125 | ||
4126 | /* Nonzero means %T has been seen; the next arg to be terminated | |
4127 | is the name of a linker script and we should try all of the | |
4128 | standard search dirs for it. If it is found insert a --script | |
4129 | command line switch and then substitute the full path in place, | |
4130 | otherwise generate an error message. */ | |
4131 | static int this_is_linker_script; | |
4132 | ||
4133 | /* Nonzero means that the input of this command is coming from a pipe. */ | |
4134 | static int input_from_pipe; | |
4135 | ||
4136 | /* Nonnull means substitute this for any suffix when outputting a switches | |
4137 | arguments. */ | |
4138 | static const char *suffix_subst; | |
4139 | ||
4140 | /* If there is an argument being accumulated, terminate it and store it. */ | |
4141 | ||
4142 | static void | |
4143 | end_going_arg (void) | |
4144 | { | |
4145 | if (arg_going) | |
4146 | { | |
4147 | const char *string; | |
4148 | ||
4149 | obstack_1grow (&obstack, 0); | |
4150 | string = XOBFINISH (&obstack, const char *); | |
4151 | if (this_is_library_file) | |
4152 | string = find_file (string); | |
4153 | if (this_is_linker_script) | |
4154 | { | |
4155 | char * full_script_path = find_a_file (&startfile_prefixes, string, R_OK, true); | |
4156 | ||
4157 | if (full_script_path == NULL) | |
4158 | { | |
4159 | error ("unable to locate default linker script %qs in the library search paths", string); | |
4160 | /* Script was not found on search path. */ | |
4161 | return; | |
4162 | } | |
4163 | store_arg ("--script", false, false); | |
4164 | string = full_script_path; | |
4165 | } | |
4166 | store_arg (string, delete_this_arg, this_is_output_file); | |
4167 | if (this_is_output_file) | |
4168 | outfiles[input_file_number] = string; | |
4169 | arg_going = 0; | |
4170 | } | |
4171 | } | |
4172 | ||
4173 | ||
4174 | /* Parse the WRAPPER string which is a comma separated list of the command line | |
4175 | and insert them into the beginning of argbuf. */ | |
4176 | ||
4177 | static void | |
4178 | insert_wrapper (const char *wrapper) | |
4179 | { | |
4180 | int n = 0; | |
4181 | int i; | |
4182 | char *buf = xstrdup (wrapper); | |
4183 | char *p = buf; | |
4184 | unsigned int old_length = VEC_length (const_char_p, argbuf); | |
4185 | ||
4186 | do | |
4187 | { | |
4188 | n++; | |
4189 | while (*p == ',') | |
4190 | p++; | |
4191 | } | |
4192 | while ((p = strchr (p, ',')) != NULL); | |
4193 | ||
4194 | VEC_safe_grow (const_char_p, heap, argbuf, old_length + n); | |
4195 | memmove (VEC_address (const_char_p, argbuf) + n, | |
4196 | VEC_address (const_char_p, argbuf), | |
4197 | old_length * sizeof (const_char_p)); | |
4198 | ||
4199 | i = 0; | |
4200 | p = buf; | |
4201 | do | |
4202 | { | |
4203 | while (*p == ',') | |
4204 | { | |
4205 | *p = 0; | |
4206 | p++; | |
4207 | } | |
4208 | VEC_replace (const_char_p, argbuf, i, p); | |
4209 | i++; | |
4210 | } | |
4211 | while ((p = strchr (p, ',')) != NULL); | |
4212 | gcc_assert (i == n); | |
4213 | } | |
4214 | ||
4215 | /* Process the spec SPEC and run the commands specified therein. | |
4216 | Returns 0 if the spec is successfully processed; -1 if failed. */ | |
4217 | ||
4218 | int | |
4219 | do_spec (const char *spec) | |
4220 | { | |
4221 | int value; | |
4222 | ||
4223 | value = do_spec_2 (spec); | |
4224 | ||
4225 | /* Force out any unfinished command. | |
4226 | If -pipe, this forces out the last command if it ended in `|'. */ | |
4227 | if (value == 0) | |
4228 | { | |
4229 | if (VEC_length (const_char_p, argbuf) > 0 | |
4230 | && !strcmp (VEC_last (const_char_p, argbuf), "|")) | |
4231 | VEC_pop (const_char_p, argbuf); | |
4232 | ||
4233 | set_collect_gcc_options (); | |
4234 | ||
4235 | if (VEC_length (const_char_p, argbuf) > 0) | |
4236 | value = execute (); | |
4237 | } | |
4238 | ||
4239 | return value; | |
4240 | } | |
4241 | ||
4242 | static int | |
4243 | do_spec_2 (const char *spec) | |
4244 | { | |
4245 | int result; | |
4246 | ||
4247 | clear_args (); | |
4248 | arg_going = 0; | |
4249 | delete_this_arg = 0; | |
4250 | this_is_output_file = 0; | |
4251 | this_is_library_file = 0; | |
4252 | this_is_linker_script = 0; | |
4253 | input_from_pipe = 0; | |
4254 | suffix_subst = NULL; | |
4255 | ||
4256 | result = do_spec_1 (spec, 0, NULL); | |
4257 | ||
4258 | end_going_arg (); | |
4259 | ||
4260 | return result; | |
4261 | } | |
4262 | ||
4263 | ||
4264 | /* Process the given spec string and add any new options to the end | |
4265 | of the switches/n_switches array. */ | |
4266 | ||
4267 | static void | |
4268 | do_option_spec (const char *name, const char *spec) | |
4269 | { | |
4270 | unsigned int i, value_count, value_len; | |
4271 | const char *p, *q, *value; | |
4272 | char *tmp_spec, *tmp_spec_p; | |
4273 | ||
4274 | if (configure_default_options[0].name == NULL) | |
4275 | return; | |
4276 | ||
4277 | for (i = 0; i < ARRAY_SIZE (configure_default_options); i++) | |
4278 | if (strcmp (configure_default_options[i].name, name) == 0) | |
4279 | break; | |
4280 | if (i == ARRAY_SIZE (configure_default_options)) | |
4281 | return; | |
4282 | ||
4283 | value = configure_default_options[i].value; | |
4284 | value_len = strlen (value); | |
4285 | ||
4286 | /* Compute the size of the final spec. */ | |
4287 | value_count = 0; | |
4288 | p = spec; | |
4289 | while ((p = strstr (p, "%(VALUE)")) != NULL) | |
4290 | { | |
4291 | p ++; | |
4292 | value_count ++; | |
4293 | } | |
4294 | ||
4295 | /* Replace each %(VALUE) by the specified value. */ | |
4296 | tmp_spec = (char *) alloca (strlen (spec) + 1 | |
4297 | + value_count * (value_len - strlen ("%(VALUE)"))); | |
4298 | tmp_spec_p = tmp_spec; | |
4299 | q = spec; | |
4300 | while ((p = strstr (q, "%(VALUE)")) != NULL) | |
4301 | { | |
4302 | memcpy (tmp_spec_p, q, p - q); | |
4303 | tmp_spec_p = tmp_spec_p + (p - q); | |
4304 | memcpy (tmp_spec_p, value, value_len); | |
4305 | tmp_spec_p += value_len; | |
4306 | q = p + strlen ("%(VALUE)"); | |
4307 | } | |
4308 | strcpy (tmp_spec_p, q); | |
4309 | ||
4310 | do_self_spec (tmp_spec); | |
4311 | } | |
4312 | ||
4313 | /* Process the given spec string and add any new options to the end | |
4314 | of the switches/n_switches array. */ | |
4315 | ||
4316 | static void | |
4317 | do_self_spec (const char *spec) | |
4318 | { | |
4319 | int i; | |
4320 | ||
4321 | do_spec_2 (spec); | |
4322 | do_spec_1 (" ", 0, NULL); | |
4323 | ||
4324 | /* Mark %<S switches processed by do_self_spec to be ignored permanently. | |
4325 | do_self_specs adds the replacements to switches array, so it shouldn't | |
4326 | be processed afterwards. */ | |
4327 | for (i = 0; i < n_switches; i++) | |
4328 | if ((switches[i].live_cond & SWITCH_IGNORE)) | |
4329 | switches[i].live_cond |= SWITCH_IGNORE_PERMANENTLY; | |
4330 | ||
4331 | if (VEC_length (const_char_p, argbuf) > 0) | |
4332 | { | |
4333 | const char **argbuf_copy; | |
4334 | struct cl_decoded_option *decoded_options; | |
4335 | struct cl_option_handlers handlers; | |
4336 | unsigned int decoded_options_count; | |
4337 | unsigned int j; | |
4338 | ||
4339 | /* Create a copy of argbuf with a dummy argv[0] entry for | |
4340 | decode_cmdline_options_to_array. */ | |
4341 | argbuf_copy = XNEWVEC (const char *, | |
4342 | VEC_length (const_char_p, argbuf) + 1); | |
4343 | argbuf_copy[0] = ""; | |
4344 | memcpy (argbuf_copy + 1, VEC_address (const_char_p, argbuf), | |
4345 | VEC_length (const_char_p, argbuf) * sizeof (const char *)); | |
4346 | ||
4347 | decode_cmdline_options_to_array (VEC_length (const_char_p, argbuf) + 1, | |
4348 | argbuf_copy, | |
4349 | CL_DRIVER, &decoded_options, | |
4350 | &decoded_options_count); | |
4351 | ||
4352 | set_option_handlers (&handlers); | |
4353 | ||
4354 | for (j = 1; j < decoded_options_count; j++) | |
4355 | { | |
4356 | switch (decoded_options[j].opt_index) | |
4357 | { | |
4358 | case OPT_SPECIAL_input_file: | |
4359 | /* Specs should only generate options, not input | |
4360 | files. */ | |
4361 | if (strcmp (decoded_options[j].arg, "-") != 0) | |
4362 | fatal_error ("switch %qs does not start with %<-%>", | |
4363 | decoded_options[j].arg); | |
4364 | else | |
4365 | fatal_error ("spec-generated switch is just %<-%>"); | |
4366 | break; | |
4367 | ||
4368 | case OPT_fcompare_debug_second: | |
4369 | case OPT_fcompare_debug: | |
4370 | case OPT_fcompare_debug_: | |
4371 | case OPT_o: | |
4372 | /* Avoid duplicate processing of some options from | |
4373 | compare-debug specs; just save them here. */ | |
4374 | save_switch (decoded_options[j].canonical_option[0], | |
4375 | (decoded_options[j].canonical_option_num_elements | |
4376 | - 1), | |
4377 | &decoded_options[j].canonical_option[1], false); | |
4378 | break; | |
4379 | ||
4380 | default: | |
4381 | read_cmdline_option (&global_options, &global_options_set, | |
4382 | decoded_options + j, UNKNOWN_LOCATION, | |
4383 | CL_DRIVER, &handlers, global_dc); | |
4384 | break; | |
4385 | } | |
4386 | } | |
4387 | ||
4388 | alloc_switch (); | |
4389 | switches[n_switches].part1 = 0; | |
4390 | } | |
4391 | } | |
4392 | ||
4393 | /* Callback for processing %D and %I specs. */ | |
4394 | ||
4395 | struct spec_path_info { | |
4396 | const char *option; | |
4397 | const char *append; | |
4398 | size_t append_len; | |
4399 | bool omit_relative; | |
4400 | bool separate_options; | |
4401 | }; | |
4402 | ||
4403 | static void * | |
4404 | spec_path (char *path, void *data) | |
4405 | { | |
4406 | struct spec_path_info *info = (struct spec_path_info *) data; | |
4407 | size_t len = 0; | |
4408 | char save = 0; | |
4409 | ||
4410 | if (info->omit_relative && !IS_ABSOLUTE_PATH (path)) | |
4411 | return NULL; | |
4412 | ||
4413 | if (info->append_len != 0) | |
4414 | { | |
4415 | len = strlen (path); | |
4416 | memcpy (path + len, info->append, info->append_len + 1); | |
4417 | } | |
4418 | ||
4419 | if (!is_directory (path, true)) | |
4420 | return NULL; | |
4421 | ||
4422 | do_spec_1 (info->option, 1, NULL); | |
4423 | if (info->separate_options) | |
4424 | do_spec_1 (" ", 0, NULL); | |
4425 | ||
4426 | if (info->append_len == 0) | |
4427 | { | |
4428 | len = strlen (path); | |
4429 | save = path[len - 1]; | |
4430 | if (IS_DIR_SEPARATOR (path[len - 1])) | |
4431 | path[len - 1] = '\0'; | |
4432 | } | |
4433 | ||
4434 | do_spec_1 (path, 1, NULL); | |
4435 | do_spec_1 (" ", 0, NULL); | |
4436 | ||
4437 | /* Must not damage the original path. */ | |
4438 | if (info->append_len == 0) | |
4439 | path[len - 1] = save; | |
4440 | ||
4441 | return NULL; | |
4442 | } | |
4443 | ||
4444 | /* Create a temporary FILE with the contents of ARGV. Add @FILE to the | |
4445 | argument list. */ | |
4446 | ||
4447 | static void | |
4448 | create_at_file (char **argv) | |
4449 | { | |
4450 | char *temp_file = make_temp_file (""); | |
4451 | char *at_argument = concat ("@", temp_file, NULL); | |
4452 | FILE *f = fopen (temp_file, "w"); | |
4453 | int status; | |
4454 | ||
4455 | if (f == NULL) | |
4456 | fatal_error ("could not open temporary response file %s", | |
4457 | temp_file); | |
4458 | ||
4459 | status = writeargv (argv, f); | |
4460 | ||
4461 | if (status) | |
4462 | fatal_error ("could not write to temporary response file %s", | |
4463 | temp_file); | |
4464 | ||
4465 | status = fclose (f); | |
4466 | ||
4467 | if (EOF == status) | |
4468 | fatal_error ("could not close temporary response file %s", | |
4469 | temp_file); | |
4470 | ||
4471 | store_arg (at_argument, 0, 0); | |
4472 | ||
4473 | record_temp_file (temp_file, !save_temps_flag, !save_temps_flag); | |
4474 | } | |
4475 | ||
4476 | /* True if we should compile INFILE. */ | |
4477 | ||
4478 | static bool | |
4479 | compile_input_file_p (struct infile *infile) | |
4480 | { | |
4481 | if ((!infile->language) || (infile->language[0] != '*')) | |
4482 | if (infile->incompiler == input_file_compiler) | |
4483 | return true; | |
4484 | return false; | |
4485 | } | |
4486 | ||
4487 | /* Process each member of VEC as a spec. */ | |
4488 | ||
4489 | static void | |
4490 | do_specs_vec (VEC(char_p,heap) *vec) | |
4491 | { | |
4492 | unsigned ix; | |
4493 | char *opt; | |
4494 | ||
4495 | FOR_EACH_VEC_ELT (char_p, vec, ix, opt) | |
4496 | { | |
4497 | do_spec_1 (opt, 1, NULL); | |
4498 | /* Make each accumulated option a separate argument. */ | |
4499 | do_spec_1 (" ", 0, NULL); | |
4500 | } | |
4501 | } | |
4502 | ||
4503 | /* Process the sub-spec SPEC as a portion of a larger spec. | |
4504 | This is like processing a whole spec except that we do | |
4505 | not initialize at the beginning and we do not supply a | |
4506 | newline by default at the end. | |
4507 | INSWITCH nonzero means don't process %-sequences in SPEC; | |
4508 | in this case, % is treated as an ordinary character. | |
4509 | This is used while substituting switches. | |
4510 | INSWITCH nonzero also causes SPC not to terminate an argument. | |
4511 | ||
4512 | Value is zero unless a line was finished | |
4513 | and the command on that line reported an error. */ | |
4514 | ||
4515 | static int | |
4516 | do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part) | |
4517 | { | |
4518 | const char *p = spec; | |
4519 | int c; | |
4520 | int i; | |
4521 | int value; | |
4522 | ||
4523 | /* If it's an empty string argument to a switch, keep it as is. */ | |
4524 | if (inswitch && !*p) | |
4525 | arg_going = 1; | |
4526 | ||
4527 | while ((c = *p++)) | |
4528 | /* If substituting a switch, treat all chars like letters. | |
4529 | Otherwise, NL, SPC, TAB and % are special. */ | |
4530 | switch (inswitch ? 'a' : c) | |
4531 | { | |
4532 | case '\n': | |
4533 | end_going_arg (); | |
4534 | ||
4535 | if (VEC_length (const_char_p, argbuf) > 0 | |
4536 | && !strcmp (VEC_last (const_char_p, argbuf), "|")) | |
4537 | { | |
4538 | /* A `|' before the newline means use a pipe here, | |
4539 | but only if -pipe was specified. | |
4540 | Otherwise, execute now and don't pass the `|' as an arg. */ | |
4541 | if (use_pipes) | |
4542 | { | |
4543 | input_from_pipe = 1; | |
4544 | break; | |
4545 | } | |
4546 | else | |
4547 | VEC_pop (const_char_p, argbuf); | |
4548 | } | |
4549 | ||
4550 | set_collect_gcc_options (); | |
4551 | ||
4552 | if (VEC_length (const_char_p, argbuf) > 0) | |
4553 | { | |
4554 | value = execute (); | |
4555 | if (value) | |
4556 | return value; | |
4557 | } | |
4558 | /* Reinitialize for a new command, and for a new argument. */ | |
4559 | clear_args (); | |
4560 | arg_going = 0; | |
4561 | delete_this_arg = 0; | |
4562 | this_is_output_file = 0; | |
4563 | this_is_library_file = 0; | |
4564 | this_is_linker_script = 0; | |
4565 | input_from_pipe = 0; | |
4566 | break; | |
4567 | ||
4568 | case '|': | |
4569 | end_going_arg (); | |
4570 | ||
4571 | /* Use pipe */ | |
4572 | obstack_1grow (&obstack, c); | |
4573 | arg_going = 1; | |
4574 | break; | |
4575 | ||
4576 | case '\t': | |
4577 | case ' ': | |
4578 | end_going_arg (); | |
4579 | ||
4580 | /* Reinitialize for a new argument. */ | |
4581 | delete_this_arg = 0; | |
4582 | this_is_output_file = 0; | |
4583 | this_is_library_file = 0; | |
4584 | this_is_linker_script = 0; | |
4585 | break; | |
4586 | ||
4587 | case '%': | |
4588 | switch (c = *p++) | |
4589 | { | |
4590 | case 0: | |
4591 | fatal_error ("spec %qs invalid", spec); | |
4592 | ||
4593 | case 'b': | |
4594 | if (save_temps_length) | |
4595 | obstack_grow (&obstack, save_temps_prefix, save_temps_length); | |
4596 | else | |
4597 | obstack_grow (&obstack, input_basename, basename_length); | |
4598 | if (compare_debug < 0) | |
4599 | obstack_grow (&obstack, ".gk", 3); | |
4600 | arg_going = 1; | |
4601 | break; | |
4602 | ||
4603 | case 'B': | |
4604 | if (save_temps_length) | |
4605 | obstack_grow (&obstack, save_temps_prefix, save_temps_length); | |
4606 | else | |
4607 | obstack_grow (&obstack, input_basename, suffixed_basename_length); | |
4608 | if (compare_debug < 0) | |
4609 | obstack_grow (&obstack, ".gk", 3); | |
4610 | arg_going = 1; | |
4611 | break; | |
4612 | ||
4613 | case 'd': | |
4614 | delete_this_arg = 2; | |
4615 | break; | |
4616 | ||
4617 | /* Dump out the directories specified with LIBRARY_PATH, | |
4618 | followed by the absolute directories | |
4619 | that we search for startfiles. */ | |
4620 | case 'D': | |
4621 | { | |
4622 | struct spec_path_info info; | |
4623 | ||
4624 | info.option = "-L"; | |
4625 | info.append_len = 0; | |
4626 | #ifdef RELATIVE_PREFIX_NOT_LINKDIR | |
4627 | /* Used on systems which record the specified -L dirs | |
4628 | and use them to search for dynamic linking. | |
4629 | Relative directories always come from -B, | |
4630 | and it is better not to use them for searching | |
4631 | at run time. In particular, stage1 loses. */ | |
4632 | info.omit_relative = true; | |
4633 | #else | |
4634 | info.omit_relative = false; | |
4635 | #endif | |
4636 | info.separate_options = false; | |
4637 | ||
4638 | for_each_path (&startfile_prefixes, true, 0, spec_path, &info); | |
4639 | } | |
4640 | break; | |
4641 | ||
4642 | case 'e': | |
4643 | /* %efoo means report an error with `foo' as error message | |
4644 | and don't execute any more commands for this file. */ | |
4645 | { | |
4646 | const char *q = p; | |
4647 | char *buf; | |
4648 | while (*p != 0 && *p != '\n') | |
4649 | p++; | |
4650 | buf = (char *) alloca (p - q + 1); | |
4651 | strncpy (buf, q, p - q); | |
4652 | buf[p - q] = 0; | |
4653 | error ("%s", _(buf)); | |
4654 | return -1; | |
4655 | } | |
4656 | break; | |
4657 | case 'n': | |
4658 | /* %nfoo means report a notice with `foo' on stderr. */ | |
4659 | { | |
4660 | const char *q = p; | |
4661 | char *buf; | |
4662 | while (*p != 0 && *p != '\n') | |
4663 | p++; | |
4664 | buf = (char *) alloca (p - q + 1); | |
4665 | strncpy (buf, q, p - q); | |
4666 | buf[p - q] = 0; | |
4667 | inform (0, "%s", _(buf)); | |
4668 | if (*p) | |
4669 | p++; | |
4670 | } | |
4671 | break; | |
4672 | ||
4673 | case 'j': | |
4674 | { | |
4675 | struct stat st; | |
4676 | ||
4677 | /* If save_temps_flag is off, and the HOST_BIT_BUCKET is | |
4678 | defined, and it is not a directory, and it is | |
4679 | writable, use it. Otherwise, treat this like any | |
4680 | other temporary file. */ | |
4681 | ||
4682 | if ((!save_temps_flag) | |
4683 | && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode)) | |
4684 | && (access (HOST_BIT_BUCKET, W_OK) == 0)) | |
4685 | { | |
4686 | obstack_grow (&obstack, HOST_BIT_BUCKET, | |
4687 | strlen (HOST_BIT_BUCKET)); | |
4688 | delete_this_arg = 0; | |
4689 | arg_going = 1; | |
4690 | break; | |
4691 | } | |
4692 | } | |
4693 | goto create_temp_file; | |
4694 | case '|': | |
4695 | if (use_pipes) | |
4696 | { | |
4697 | obstack_1grow (&obstack, '-'); | |
4698 | delete_this_arg = 0; | |
4699 | arg_going = 1; | |
4700 | ||
4701 | /* consume suffix */ | |
4702 | while (*p == '.' || ISALNUM ((unsigned char) *p)) | |
4703 | p++; | |
4704 | if (p[0] == '%' && p[1] == 'O') | |
4705 | p += 2; | |
4706 | ||
4707 | break; | |
4708 | } | |
4709 | goto create_temp_file; | |
4710 | case 'm': | |
4711 | if (use_pipes) | |
4712 | { | |
4713 | /* consume suffix */ | |
4714 | while (*p == '.' || ISALNUM ((unsigned char) *p)) | |
4715 | p++; | |
4716 | if (p[0] == '%' && p[1] == 'O') | |
4717 | p += 2; | |
4718 | ||
4719 | break; | |
4720 | } | |
4721 | goto create_temp_file; | |
4722 | case 'g': | |
4723 | case 'u': | |
4724 | case 'U': | |
4725 | create_temp_file: | |
4726 | { | |
4727 | struct temp_name *t; | |
4728 | int suffix_length; | |
4729 | const char *suffix = p; | |
4730 | char *saved_suffix = NULL; | |
4731 | ||
4732 | while (*p == '.' || ISALNUM ((unsigned char) *p)) | |
4733 | p++; | |
4734 | suffix_length = p - suffix; | |
4735 | if (p[0] == '%' && p[1] == 'O') | |
4736 | { | |
4737 | p += 2; | |
4738 | /* We don't support extra suffix characters after %O. */ | |
4739 | if (*p == '.' || ISALNUM ((unsigned char) *p)) | |
4740 | fatal_error ("spec %qs has invalid %<%%0%c%>", spec, *p); | |
4741 | if (suffix_length == 0) | |
4742 | suffix = TARGET_OBJECT_SUFFIX; | |
4743 | else | |
4744 | { | |
4745 | saved_suffix | |
4746 | = XNEWVEC (char, suffix_length | |
4747 | + strlen (TARGET_OBJECT_SUFFIX)); | |
4748 | strncpy (saved_suffix, suffix, suffix_length); | |
4749 | strcpy (saved_suffix + suffix_length, | |
4750 | TARGET_OBJECT_SUFFIX); | |
4751 | } | |
4752 | suffix_length += strlen (TARGET_OBJECT_SUFFIX); | |
4753 | } | |
4754 | ||
4755 | if (compare_debug < 0) | |
4756 | { | |
4757 | suffix = concat (".gk", suffix, NULL); | |
4758 | suffix_length += 3; | |
4759 | } | |
4760 | ||
4761 | /* If -save-temps=obj and -o were specified, use that for the | |
4762 | temp file. */ | |
4763 | if (save_temps_length) | |
4764 | { | |
4765 | char *tmp; | |
4766 | temp_filename_length | |
4767 | = save_temps_length + suffix_length + 1; | |
4768 | tmp = (char *) alloca (temp_filename_length); | |
4769 | memcpy (tmp, save_temps_prefix, save_temps_length); | |
4770 | memcpy (tmp + save_temps_length, suffix, suffix_length); | |
4771 | tmp[save_temps_length + suffix_length] = '\0'; | |
4772 | temp_filename = save_string (tmp, | |
4773 | temp_filename_length + 1); | |
4774 | obstack_grow (&obstack, temp_filename, | |
4775 | temp_filename_length); | |
4776 | arg_going = 1; | |
4777 | delete_this_arg = 0; | |
4778 | break; | |
4779 | } | |
4780 | ||
4781 | /* If the gcc_input_filename has the same suffix specified | |
4782 | for the %g, %u, or %U, and -save-temps is specified, | |
4783 | we could end up using that file as an intermediate | |
4784 | thus clobbering the user's source file (.e.g., | |
4785 | gcc -save-temps foo.s would clobber foo.s with the | |
4786 | output of cpp0). So check for this condition and | |
4787 | generate a temp file as the intermediate. */ | |
4788 | ||
4789 | if (save_temps_flag) | |
4790 | { | |
4791 | char *tmp; | |
4792 | temp_filename_length = basename_length + suffix_length + 1; | |
4793 | tmp = (char *) alloca (temp_filename_length); | |
4794 | memcpy (tmp, input_basename, basename_length); | |
4795 | memcpy (tmp + basename_length, suffix, suffix_length); | |
4796 | tmp[basename_length + suffix_length] = '\0'; | |
4797 | temp_filename = tmp; | |
4798 | ||
4799 | if (filename_cmp (temp_filename, gcc_input_filename) != 0) | |
4800 | { | |
4801 | #ifndef HOST_LACKS_INODE_NUMBERS | |
4802 | struct stat st_temp; | |
4803 | ||
4804 | /* Note, set_input() resets input_stat_set to 0. */ | |
4805 | if (input_stat_set == 0) | |
4806 | { | |
4807 | input_stat_set = stat (gcc_input_filename, | |
4808 | &input_stat); | |
4809 | if (input_stat_set >= 0) | |
4810 | input_stat_set = 1; | |
4811 | } | |
4812 | ||
4813 | /* If we have the stat for the gcc_input_filename | |
4814 | and we can do the stat for the temp_filename | |
4815 | then the they could still refer to the same | |
4816 | file if st_dev/st_ino's are the same. */ | |
4817 | if (input_stat_set != 1 | |
4818 | || stat (temp_filename, &st_temp) < 0 | |
4819 | || input_stat.st_dev != st_temp.st_dev | |
4820 | || input_stat.st_ino != st_temp.st_ino) | |
4821 | #else | |
4822 | /* Just compare canonical pathnames. */ | |
4823 | char* input_realname = lrealpath (gcc_input_filename); | |
4824 | char* temp_realname = lrealpath (temp_filename); | |
4825 | bool files_differ = filename_cmp (input_realname, temp_realname); | |
4826 | free (input_realname); | |
4827 | free (temp_realname); | |
4828 | if (files_differ) | |
4829 | #endif | |
4830 | { | |
4831 | temp_filename = save_string (temp_filename, | |
4832 | temp_filename_length + 1); | |
4833 | obstack_grow (&obstack, temp_filename, | |
4834 | temp_filename_length); | |
4835 | arg_going = 1; | |
4836 | delete_this_arg = 0; | |
4837 | break; | |
4838 | } | |
4839 | } | |
4840 | } | |
4841 | ||
4842 | /* See if we already have an association of %g/%u/%U and | |
4843 | suffix. */ | |
4844 | for (t = temp_names; t; t = t->next) | |
4845 | if (t->length == suffix_length | |
4846 | && strncmp (t->suffix, suffix, suffix_length) == 0 | |
4847 | && t->unique == (c == 'u' || c == 'U' || c == 'j')) | |
4848 | break; | |
4849 | ||
4850 | /* Make a new association if needed. %u and %j | |
4851 | require one. */ | |
4852 | if (t == 0 || c == 'u' || c == 'j') | |
4853 | { | |
4854 | if (t == 0) | |
4855 | { | |
4856 | t = XNEW (struct temp_name); | |
4857 | t->next = temp_names; | |
4858 | temp_names = t; | |
4859 | } | |
4860 | t->length = suffix_length; | |
4861 | if (saved_suffix) | |
4862 | { | |
4863 | t->suffix = saved_suffix; | |
4864 | saved_suffix = NULL; | |
4865 | } | |
4866 | else | |
4867 | t->suffix = save_string (suffix, suffix_length); | |
4868 | t->unique = (c == 'u' || c == 'U' || c == 'j'); | |
4869 | temp_filename = make_temp_file (t->suffix); | |
4870 | temp_filename_length = strlen (temp_filename); | |
4871 | t->filename = temp_filename; | |
4872 | t->filename_length = temp_filename_length; | |
4873 | } | |
4874 | ||
4875 | free (saved_suffix); | |
4876 | ||
4877 | obstack_grow (&obstack, t->filename, t->filename_length); | |
4878 | delete_this_arg = 1; | |
4879 | } | |
4880 | arg_going = 1; | |
4881 | break; | |
4882 | ||
4883 | case 'i': | |
4884 | if (combine_inputs) | |
4885 | { | |
4886 | if (at_file_supplied) | |
4887 | { | |
4888 | /* We are going to expand `%i' to `@FILE', where FILE | |
4889 | is a newly-created temporary filename. The filenames | |
4890 | that would usually be expanded in place of %o will be | |
4891 | written to the temporary file. */ | |
4892 | char **argv; | |
4893 | int n_files = 0; | |
4894 | int j; | |
4895 | ||
4896 | for (i = 0; i < n_infiles; i++) | |
4897 | if (compile_input_file_p (&infiles[i])) | |
4898 | n_files++; | |
4899 | ||
4900 | argv = (char **) alloca (sizeof (char *) * (n_files + 1)); | |
4901 | ||
4902 | /* Copy the strings over. */ | |
4903 | for (i = 0, j = 0; i < n_infiles; i++) | |
4904 | if (compile_input_file_p (&infiles[i])) | |
4905 | { | |
4906 | argv[j] = CONST_CAST (char *, infiles[i].name); | |
4907 | infiles[i].compiled = true; | |
4908 | j++; | |
4909 | } | |
4910 | argv[j] = NULL; | |
4911 | ||
4912 | create_at_file (argv); | |
4913 | } | |
4914 | else | |
4915 | for (i = 0; (int) i < n_infiles; i++) | |
4916 | if (compile_input_file_p (&infiles[i])) | |
4917 | { | |
4918 | store_arg (infiles[i].name, 0, 0); | |
4919 | infiles[i].compiled = true; | |
4920 | } | |
4921 | } | |
4922 | else | |
4923 | { | |
4924 | obstack_grow (&obstack, gcc_input_filename, | |
4925 | input_filename_length); | |
4926 | arg_going = 1; | |
4927 | } | |
4928 | break; | |
4929 | ||
4930 | case 'I': | |
4931 | { | |
4932 | struct spec_path_info info; | |
4933 | ||
4934 | if (multilib_dir) | |
4935 | { | |
4936 | do_spec_1 ("-imultilib", 1, NULL); | |
4937 | /* Make this a separate argument. */ | |
4938 | do_spec_1 (" ", 0, NULL); | |
4939 | do_spec_1 (multilib_dir, 1, NULL); | |
4940 | do_spec_1 (" ", 0, NULL); | |
4941 | } | |
4942 | ||
5ce9237c JM |
4943 | if (multiarch_dir) |
4944 | { | |
4945 | do_spec_1 ("-imultiarch", 1, NULL); | |
4946 | /* Make this a separate argument. */ | |
4947 | do_spec_1 (" ", 0, NULL); | |
4948 | do_spec_1 (multiarch_dir, 1, NULL); | |
4949 | do_spec_1 (" ", 0, NULL); | |
4950 | } | |
4951 | ||
e4b17023 JM |
4952 | if (gcc_exec_prefix) |
4953 | { | |
4954 | do_spec_1 ("-iprefix", 1, NULL); | |
4955 | /* Make this a separate argument. */ | |
4956 | do_spec_1 (" ", 0, NULL); | |
4957 | do_spec_1 (gcc_exec_prefix, 1, NULL); | |
4958 | do_spec_1 (" ", 0, NULL); | |
4959 | } | |
4960 | ||
4961 | if (target_system_root_changed || | |
4962 | (target_system_root && target_sysroot_hdrs_suffix)) | |
4963 | { | |
4964 | do_spec_1 ("-isysroot", 1, NULL); | |
4965 | /* Make this a separate argument. */ | |
4966 | do_spec_1 (" ", 0, NULL); | |
4967 | do_spec_1 (target_system_root, 1, NULL); | |
4968 | if (target_sysroot_hdrs_suffix) | |
4969 | do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL); | |
4970 | do_spec_1 (" ", 0, NULL); | |
4971 | } | |
4972 | ||
4973 | info.option = "-isystem"; | |
4974 | info.append = "include"; | |
4975 | info.append_len = strlen (info.append); | |
4976 | info.omit_relative = false; | |
4977 | info.separate_options = true; | |
4978 | ||
4979 | for_each_path (&include_prefixes, false, info.append_len, | |
4980 | spec_path, &info); | |
4981 | ||
4982 | info.append = "include-fixed"; | |
4983 | if (*sysroot_hdrs_suffix_spec) | |
4984 | info.append = concat (info.append, dir_separator_str, | |
4985 | multilib_dir, NULL); | |
4986 | info.append_len = strlen (info.append); | |
4987 | for_each_path (&include_prefixes, false, info.append_len, | |
4988 | spec_path, &info); | |
4989 | } | |
4990 | break; | |
4991 | ||
4992 | case 'o': | |
4993 | { | |
4994 | int max = n_infiles; | |
4995 | max += lang_specific_extra_outfiles; | |
4996 | ||
4997 | if (HAVE_GNU_LD && at_file_supplied) | |
4998 | { | |
4999 | /* We are going to expand `%o' to `@FILE', where FILE | |
5000 | is a newly-created temporary filename. The filenames | |
5001 | that would usually be expanded in place of %o will be | |
5002 | written to the temporary file. */ | |
5003 | ||
5004 | char **argv; | |
5005 | int n_files, j; | |
5006 | ||
5007 | /* Convert OUTFILES into a form suitable for writeargv. */ | |
5008 | ||
5009 | /* Determine how many are non-NULL. */ | |
5010 | for (n_files = 0, i = 0; i < max; i++) | |
5011 | n_files += outfiles[i] != NULL; | |
5012 | ||
5013 | argv = (char **) alloca (sizeof (char *) * (n_files + 1)); | |
5014 | ||
5015 | /* Copy the strings over. */ | |
5016 | for (i = 0, j = 0; i < max; i++) | |
5017 | if (outfiles[i]) | |
5018 | { | |
5019 | argv[j] = CONST_CAST (char *, outfiles[i]); | |
5020 | j++; | |
5021 | } | |
5022 | argv[j] = NULL; | |
5023 | ||
5024 | create_at_file (argv); | |
5025 | } | |
5026 | else | |
5027 | for (i = 0; i < max; i++) | |
5028 | if (outfiles[i]) | |
5029 | store_arg (outfiles[i], 0, 0); | |
5030 | break; | |
5031 | } | |
5032 | ||
5033 | case 'O': | |
5034 | obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX)); | |
5035 | arg_going = 1; | |
5036 | break; | |
5037 | ||
5038 | case 's': | |
5039 | this_is_library_file = 1; | |
5040 | break; | |
5041 | ||
5042 | case 'T': | |
5043 | this_is_linker_script = 1; | |
5044 | break; | |
5045 | ||
5046 | case 'V': | |
5047 | outfiles[input_file_number] = NULL; | |
5048 | break; | |
5049 | ||
5050 | case 'w': | |
5051 | this_is_output_file = 1; | |
5052 | break; | |
5053 | ||
5054 | case 'W': | |
5055 | { | |
5056 | unsigned int cur_index = VEC_length (const_char_p, argbuf); | |
5057 | /* Handle the {...} following the %W. */ | |
5058 | if (*p != '{') | |
5059 | fatal_error ("spec %qs has invalid %<%%W%c%>", spec, *p); | |
5060 | p = handle_braces (p + 1); | |
5061 | if (p == 0) | |
5062 | return -1; | |
5063 | end_going_arg (); | |
5064 | /* If any args were output, mark the last one for deletion | |
5065 | on failure. */ | |
5066 | if (VEC_length (const_char_p, argbuf) != cur_index) | |
5067 | record_temp_file (VEC_last (const_char_p, argbuf), 0, 1); | |
5068 | break; | |
5069 | } | |
5070 | ||
5071 | /* %x{OPTION} records OPTION for %X to output. */ | |
5072 | case 'x': | |
5073 | { | |
5074 | const char *p1 = p; | |
5075 | char *string; | |
5076 | char *opt; | |
5077 | unsigned ix; | |
5078 | ||
5079 | /* Skip past the option value and make a copy. */ | |
5080 | if (*p != '{') | |
5081 | fatal_error ("spec %qs has invalid %<%%x%c%>", spec, *p); | |
5082 | while (*p++ != '}') | |
5083 | ; | |
5084 | string = save_string (p1 + 1, p - p1 - 2); | |
5085 | ||
5086 | /* See if we already recorded this option. */ | |
5087 | FOR_EACH_VEC_ELT (char_p, linker_options, ix, opt) | |
5088 | if (! strcmp (string, opt)) | |
5089 | { | |
5090 | free (string); | |
5091 | return 0; | |
5092 | } | |
5093 | ||
5094 | /* This option is new; add it. */ | |
5095 | add_linker_option (string, strlen (string)); | |
5096 | } | |
5097 | break; | |
5098 | ||
5099 | /* Dump out the options accumulated previously using %x. */ | |
5100 | case 'X': | |
5101 | do_specs_vec (linker_options); | |
5102 | break; | |
5103 | ||
5104 | /* Dump out the options accumulated previously using -Wa,. */ | |
5105 | case 'Y': | |
5106 | do_specs_vec (assembler_options); | |
5107 | break; | |
5108 | ||
5109 | /* Dump out the options accumulated previously using -Wp,. */ | |
5110 | case 'Z': | |
5111 | do_specs_vec (preprocessor_options); | |
5112 | break; | |
5113 | ||
5114 | /* Here are digits and numbers that just process | |
5115 | a certain constant string as a spec. */ | |
5116 | ||
5117 | case '1': | |
5118 | value = do_spec_1 (cc1_spec, 0, NULL); | |
5119 | if (value != 0) | |
5120 | return value; | |
5121 | break; | |
5122 | ||
5123 | case '2': | |
5124 | value = do_spec_1 (cc1plus_spec, 0, NULL); | |
5125 | if (value != 0) | |
5126 | return value; | |
5127 | break; | |
5128 | ||
5129 | case 'a': | |
5130 | value = do_spec_1 (asm_spec, 0, NULL); | |
5131 | if (value != 0) | |
5132 | return value; | |
5133 | break; | |
5134 | ||
5135 | case 'A': | |
5136 | value = do_spec_1 (asm_final_spec, 0, NULL); | |
5137 | if (value != 0) | |
5138 | return value; | |
5139 | break; | |
5140 | ||
5141 | case 'C': | |
5142 | { | |
5143 | const char *const spec | |
5144 | = (input_file_compiler->cpp_spec | |
5145 | ? input_file_compiler->cpp_spec | |
5146 | : cpp_spec); | |
5147 | value = do_spec_1 (spec, 0, NULL); | |
5148 | if (value != 0) | |
5149 | return value; | |
5150 | } | |
5151 | break; | |
5152 | ||
5153 | case 'E': | |
5154 | value = do_spec_1 (endfile_spec, 0, NULL); | |
5155 | if (value != 0) | |
5156 | return value; | |
5157 | break; | |
5158 | ||
5159 | case 'l': | |
5160 | value = do_spec_1 (link_spec, 0, NULL); | |
5161 | if (value != 0) | |
5162 | return value; | |
5163 | break; | |
5164 | ||
5165 | case 'L': | |
5166 | value = do_spec_1 (lib_spec, 0, NULL); | |
5167 | if (value != 0) | |
5168 | return value; | |
5169 | break; | |
5170 | ||
5171 | case 'G': | |
5172 | value = do_spec_1 (libgcc_spec, 0, NULL); | |
5173 | if (value != 0) | |
5174 | return value; | |
5175 | break; | |
5176 | ||
5177 | case 'R': | |
5178 | /* We assume there is a directory | |
5179 | separator at the end of this string. */ | |
5180 | if (target_system_root) | |
5181 | { | |
5182 | obstack_grow (&obstack, target_system_root, | |
5183 | strlen (target_system_root)); | |
5184 | if (target_sysroot_suffix) | |
5185 | obstack_grow (&obstack, target_sysroot_suffix, | |
5186 | strlen (target_sysroot_suffix)); | |
5187 | } | |
5188 | break; | |
5189 | ||
5190 | case 'S': | |
5191 | value = do_spec_1 (startfile_spec, 0, NULL); | |
5192 | if (value != 0) | |
5193 | return value; | |
5194 | break; | |
5195 | ||
5196 | /* Here we define characters other than letters and digits. */ | |
5197 | ||
5198 | case '{': | |
5199 | p = handle_braces (p); | |
5200 | if (p == 0) | |
5201 | return -1; | |
5202 | break; | |
5203 | ||
5204 | case ':': | |
5205 | p = handle_spec_function (p); | |
5206 | if (p == 0) | |
5207 | return -1; | |
5208 | break; | |
5209 | ||
5210 | case '%': | |
5211 | obstack_1grow (&obstack, '%'); | |
5212 | break; | |
5213 | ||
5214 | case '.': | |
5215 | { | |
5216 | unsigned len = 0; | |
5217 | ||
5218 | while (p[len] && p[len] != ' ' && p[len] != '%') | |
5219 | len++; | |
5220 | suffix_subst = save_string (p - 1, len + 1); | |
5221 | p += len; | |
5222 | } | |
5223 | break; | |
5224 | ||
5225 | /* Henceforth ignore the option(s) matching the pattern | |
5226 | after the %<. */ | |
5227 | case '<': | |
5228 | case '>': | |
5229 | { | |
5230 | unsigned len = 0; | |
5231 | int have_wildcard = 0; | |
5232 | int i; | |
5233 | int switch_option; | |
5234 | ||
5235 | if (c == '>') | |
5236 | switch_option = SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC; | |
5237 | else | |
5238 | switch_option = SWITCH_IGNORE; | |
5239 | ||
5240 | while (p[len] && p[len] != ' ' && p[len] != '\t') | |
5241 | len++; | |
5242 | ||
5243 | if (p[len-1] == '*') | |
5244 | have_wildcard = 1; | |
5245 | ||
5246 | for (i = 0; i < n_switches; i++) | |
5247 | if (!strncmp (switches[i].part1, p, len - have_wildcard) | |
5248 | && (have_wildcard || switches[i].part1[len] == '\0')) | |
5249 | { | |
5250 | switches[i].live_cond |= switch_option; | |
5251 | switches[i].validated = 1; | |
5252 | } | |
5253 | ||
5254 | p += len; | |
5255 | } | |
5256 | break; | |
5257 | ||
5258 | case '*': | |
5259 | if (soft_matched_part) | |
5260 | { | |
5261 | if (soft_matched_part[0]) | |
5262 | do_spec_1 (soft_matched_part, 1, NULL); | |
5263 | do_spec_1 (" ", 0, NULL); | |
5264 | } | |
5265 | else | |
5266 | /* Catch the case where a spec string contains something like | |
5267 | '%{foo:%*}'. i.e. there is no * in the pattern on the left | |
5268 | hand side of the :. */ | |
5269 | error ("spec failure: %<%%*%> has not been initialized by pattern match"); | |
5270 | break; | |
5271 | ||
5272 | /* Process a string found as the value of a spec given by name. | |
5273 | This feature allows individual machine descriptions | |
5274 | to add and use their own specs. */ | |
5275 | case '(': | |
5276 | { | |
5277 | const char *name = p; | |
5278 | struct spec_list *sl; | |
5279 | int len; | |
5280 | ||
5281 | /* The string after the S/P is the name of a spec that is to be | |
5282 | processed. */ | |
5283 | while (*p && *p != ')') | |
5284 | p++; | |
5285 | ||
5286 | /* See if it's in the list. */ | |
5287 | for (len = p - name, sl = specs; sl; sl = sl->next) | |
5288 | if (sl->name_len == len && !strncmp (sl->name, name, len)) | |
5289 | { | |
5290 | name = *(sl->ptr_spec); | |
5291 | #ifdef DEBUG_SPECS | |
5292 | fnotice (stderr, "Processing spec (%s), which is '%s'\n", | |
5293 | sl->name, name); | |
5294 | #endif | |
5295 | break; | |
5296 | } | |
5297 | ||
5298 | if (sl) | |
5299 | { | |
5300 | value = do_spec_1 (name, 0, NULL); | |
5301 | if (value != 0) | |
5302 | return value; | |
5303 | } | |
5304 | ||
5305 | /* Discard the closing paren. */ | |
5306 | if (*p) | |
5307 | p++; | |
5308 | } | |
5309 | break; | |
5310 | ||
5311 | default: | |
5312 | error ("spec failure: unrecognized spec option %qc", c); | |
5313 | break; | |
5314 | } | |
5315 | break; | |
5316 | ||
5317 | case '\\': | |
5318 | /* Backslash: treat next character as ordinary. */ | |
5319 | c = *p++; | |
5320 | ||
5321 | /* Fall through. */ | |
5322 | default: | |
5323 | /* Ordinary character: put it into the current argument. */ | |
5324 | obstack_1grow (&obstack, c); | |
5325 | arg_going = 1; | |
5326 | } | |
5327 | ||
5328 | /* End of string. If we are processing a spec function, we need to | |
5329 | end any pending argument. */ | |
5330 | if (processing_spec_function) | |
5331 | end_going_arg (); | |
5332 | ||
5333 | return 0; | |
5334 | } | |
5335 | ||
5336 | /* Look up a spec function. */ | |
5337 | ||
5338 | static const struct spec_function * | |
5339 | lookup_spec_function (const char *name) | |
5340 | { | |
5341 | const struct spec_function *sf; | |
5342 | ||
5343 | for (sf = static_spec_functions; sf->name != NULL; sf++) | |
5344 | if (strcmp (sf->name, name) == 0) | |
5345 | return sf; | |
5346 | ||
5347 | return NULL; | |
5348 | } | |
5349 | ||
5350 | /* Evaluate a spec function. */ | |
5351 | ||
5352 | static const char * | |
5353 | eval_spec_function (const char *func, const char *args) | |
5354 | { | |
5355 | const struct spec_function *sf; | |
5356 | const char *funcval; | |
5357 | ||
5358 | /* Saved spec processing context. */ | |
5359 | VEC(const_char_p,heap) *save_argbuf; | |
5360 | ||
5361 | int save_arg_going; | |
5362 | int save_delete_this_arg; | |
5363 | int save_this_is_output_file; | |
5364 | int save_this_is_library_file; | |
5365 | int save_input_from_pipe; | |
5366 | int save_this_is_linker_script; | |
5367 | const char *save_suffix_subst; | |
5368 | ||
5369 | ||
5370 | sf = lookup_spec_function (func); | |
5371 | if (sf == NULL) | |
5372 | fatal_error ("unknown spec function %qs", func); | |
5373 | ||
5374 | /* Push the spec processing context. */ | |
5375 | save_argbuf = argbuf; | |
5376 | ||
5377 | save_arg_going = arg_going; | |
5378 | save_delete_this_arg = delete_this_arg; | |
5379 | save_this_is_output_file = this_is_output_file; | |
5380 | save_this_is_library_file = this_is_library_file; | |
5381 | save_this_is_linker_script = this_is_linker_script; | |
5382 | save_input_from_pipe = input_from_pipe; | |
5383 | save_suffix_subst = suffix_subst; | |
5384 | ||
5385 | /* Create a new spec processing context, and build the function | |
5386 | arguments. */ | |
5387 | ||
5388 | alloc_args (); | |
5389 | if (do_spec_2 (args) < 0) | |
5390 | fatal_error ("error in args to spec function %qs", func); | |
5391 | ||
5392 | /* argbuf_index is an index for the next argument to be inserted, and | |
5393 | so contains the count of the args already inserted. */ | |
5394 | ||
5395 | funcval = (*sf->func) (VEC_length (const_char_p, argbuf), | |
5396 | VEC_address (const_char_p, argbuf)); | |
5397 | ||
5398 | /* Pop the spec processing context. */ | |
5399 | VEC_free (const_char_p, heap, argbuf); | |
5400 | argbuf = save_argbuf; | |
5401 | ||
5402 | arg_going = save_arg_going; | |
5403 | delete_this_arg = save_delete_this_arg; | |
5404 | this_is_output_file = save_this_is_output_file; | |
5405 | this_is_library_file = save_this_is_library_file; | |
5406 | this_is_linker_script = save_this_is_linker_script; | |
5407 | input_from_pipe = save_input_from_pipe; | |
5408 | suffix_subst = save_suffix_subst; | |
5409 | ||
5410 | return funcval; | |
5411 | } | |
5412 | ||
5413 | /* Handle a spec function call of the form: | |
5414 | ||
5415 | %:function(args) | |
5416 | ||
5417 | ARGS is processed as a spec in a separate context and split into an | |
5418 | argument vector in the normal fashion. The function returns a string | |
5419 | containing a spec which we then process in the caller's context, or | |
5420 | NULL if no processing is required. */ | |
5421 | ||
5422 | static const char * | |
5423 | handle_spec_function (const char *p) | |
5424 | { | |
5425 | char *func, *args; | |
5426 | const char *endp, *funcval; | |
5427 | int count; | |
5428 | ||
5429 | processing_spec_function++; | |
5430 | ||
5431 | /* Get the function name. */ | |
5432 | for (endp = p; *endp != '\0'; endp++) | |
5433 | { | |
5434 | if (*endp == '(') /* ) */ | |
5435 | break; | |
5436 | /* Only allow [A-Za-z0-9], -, and _ in function names. */ | |
5437 | if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_')) | |
5438 | fatal_error ("malformed spec function name"); | |
5439 | } | |
5440 | if (*endp != '(') /* ) */ | |
5441 | fatal_error ("no arguments for spec function"); | |
5442 | func = save_string (p, endp - p); | |
5443 | p = ++endp; | |
5444 | ||
5445 | /* Get the arguments. */ | |
5446 | for (count = 0; *endp != '\0'; endp++) | |
5447 | { | |
5448 | /* ( */ | |
5449 | if (*endp == ')') | |
5450 | { | |
5451 | if (count == 0) | |
5452 | break; | |
5453 | count--; | |
5454 | } | |
5455 | else if (*endp == '(') /* ) */ | |
5456 | count++; | |
5457 | } | |
5458 | /* ( */ | |
5459 | if (*endp != ')') | |
5460 | fatal_error ("malformed spec function arguments"); | |
5461 | args = save_string (p, endp - p); | |
5462 | p = ++endp; | |
5463 | ||
5464 | /* p now points to just past the end of the spec function expression. */ | |
5465 | ||
5466 | funcval = eval_spec_function (func, args); | |
5467 | if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0) | |
5468 | p = NULL; | |
5469 | ||
5470 | free (func); | |
5471 | free (args); | |
5472 | ||
5473 | processing_spec_function--; | |
5474 | ||
5475 | return p; | |
5476 | } | |
5477 | ||
5478 | /* Inline subroutine of handle_braces. Returns true if the current | |
5479 | input suffix matches the atom bracketed by ATOM and END_ATOM. */ | |
5480 | static inline bool | |
5481 | input_suffix_matches (const char *atom, const char *end_atom) | |
5482 | { | |
5483 | return (input_suffix | |
5484 | && !strncmp (input_suffix, atom, end_atom - atom) | |
5485 | && input_suffix[end_atom - atom] == '\0'); | |
5486 | } | |
5487 | ||
5488 | /* Subroutine of handle_braces. Returns true if the current | |
5489 | input file's spec name matches the atom bracketed by ATOM and END_ATOM. */ | |
5490 | static bool | |
5491 | input_spec_matches (const char *atom, const char *end_atom) | |
5492 | { | |
5493 | return (input_file_compiler | |
5494 | && input_file_compiler->suffix | |
5495 | && input_file_compiler->suffix[0] != '\0' | |
5496 | && !strncmp (input_file_compiler->suffix + 1, atom, | |
5497 | end_atom - atom) | |
5498 | && input_file_compiler->suffix[end_atom - atom + 1] == '\0'); | |
5499 | } | |
5500 | ||
5501 | /* Subroutine of handle_braces. Returns true if a switch | |
5502 | matching the atom bracketed by ATOM and END_ATOM appeared on the | |
5503 | command line. */ | |
5504 | static bool | |
5505 | switch_matches (const char *atom, const char *end_atom, int starred) | |
5506 | { | |
5507 | int i; | |
5508 | int len = end_atom - atom; | |
5509 | int plen = starred ? len : -1; | |
5510 | ||
5511 | for (i = 0; i < n_switches; i++) | |
5512 | if (!strncmp (switches[i].part1, atom, len) | |
5513 | && (starred || switches[i].part1[len] == '\0') | |
5514 | && check_live_switch (i, plen)) | |
5515 | return true; | |
5516 | ||
5517 | /* Check if a switch with separated form matching the atom. | |
5518 | We check -D and -U switches. */ | |
5519 | else if (switches[i].args != 0) | |
5520 | { | |
5521 | if ((*switches[i].part1 == 'D' || *switches[i].part1 == 'U') | |
5522 | && *switches[i].part1 == atom[0]) | |
5523 | { | |
5524 | if (!strncmp (switches[i].args[0], &atom[1], len - 1) | |
5525 | && (starred || (switches[i].part1[1] == '\0' | |
5526 | && switches[i].args[0][len - 1] == '\0')) | |
5527 | && check_live_switch (i, (starred ? 1 : -1))) | |
5528 | return true; | |
5529 | } | |
5530 | } | |
5531 | ||
5532 | return false; | |
5533 | } | |
5534 | ||
5535 | /* Inline subroutine of handle_braces. Mark all of the switches which | |
5536 | match ATOM (extends to END_ATOM; STARRED indicates whether there | |
5537 | was a star after the atom) for later processing. */ | |
5538 | static inline void | |
5539 | mark_matching_switches (const char *atom, const char *end_atom, int starred) | |
5540 | { | |
5541 | int i; | |
5542 | int len = end_atom - atom; | |
5543 | int plen = starred ? len : -1; | |
5544 | ||
5545 | for (i = 0; i < n_switches; i++) | |
5546 | if (!strncmp (switches[i].part1, atom, len) | |
5547 | && (starred || switches[i].part1[len] == '\0') | |
5548 | && check_live_switch (i, plen)) | |
5549 | switches[i].ordering = 1; | |
5550 | } | |
5551 | ||
5552 | /* Inline subroutine of handle_braces. Process all the currently | |
5553 | marked switches through give_switch, and clear the marks. */ | |
5554 | static inline void | |
5555 | process_marked_switches (void) | |
5556 | { | |
5557 | int i; | |
5558 | ||
5559 | for (i = 0; i < n_switches; i++) | |
5560 | if (switches[i].ordering == 1) | |
5561 | { | |
5562 | switches[i].ordering = 0; | |
5563 | give_switch (i, 0); | |
5564 | } | |
5565 | } | |
5566 | ||
5567 | /* Handle a %{ ... } construct. P points just inside the leading {. | |
5568 | Returns a pointer one past the end of the brace block, or 0 | |
5569 | if we call do_spec_1 and that returns -1. */ | |
5570 | ||
5571 | static const char * | |
5572 | handle_braces (const char *p) | |
5573 | { | |
5574 | const char *atom, *end_atom; | |
5575 | const char *d_atom = NULL, *d_end_atom = NULL; | |
5576 | const char *orig = p; | |
5577 | ||
5578 | bool a_is_suffix; | |
5579 | bool a_is_spectype; | |
5580 | bool a_is_starred; | |
5581 | bool a_is_negated; | |
5582 | bool a_matched; | |
5583 | ||
5584 | bool a_must_be_last = false; | |
5585 | bool ordered_set = false; | |
5586 | bool disjunct_set = false; | |
5587 | bool disj_matched = false; | |
5588 | bool disj_starred = true; | |
5589 | bool n_way_choice = false; | |
5590 | bool n_way_matched = false; | |
5591 | ||
5592 | #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0) | |
5593 | ||
5594 | do | |
5595 | { | |
5596 | if (a_must_be_last) | |
5597 | goto invalid; | |
5598 | ||
5599 | /* Scan one "atom" (S in the description above of %{}, possibly | |
5600 | with '!', '.', '@', ',', or '*' modifiers). */ | |
5601 | a_matched = false; | |
5602 | a_is_suffix = false; | |
5603 | a_is_starred = false; | |
5604 | a_is_negated = false; | |
5605 | a_is_spectype = false; | |
5606 | ||
5607 | SKIP_WHITE(); | |
5608 | if (*p == '!') | |
5609 | p++, a_is_negated = true; | |
5610 | ||
5611 | SKIP_WHITE(); | |
5612 | if (*p == '.') | |
5613 | p++, a_is_suffix = true; | |
5614 | else if (*p == ',') | |
5615 | p++, a_is_spectype = true; | |
5616 | ||
5617 | atom = p; | |
5618 | while (ISIDNUM(*p) || *p == '-' || *p == '+' || *p == '=' | |
5619 | || *p == ',' || *p == '.' || *p == '@') | |
5620 | p++; | |
5621 | end_atom = p; | |
5622 | ||
5623 | if (*p == '*') | |
5624 | p++, a_is_starred = 1; | |
5625 | ||
5626 | SKIP_WHITE(); | |
5627 | switch (*p) | |
5628 | { | |
5629 | case '&': case '}': | |
5630 | /* Substitute the switch(es) indicated by the current atom. */ | |
5631 | ordered_set = true; | |
5632 | if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix | |
5633 | || a_is_spectype || atom == end_atom) | |
5634 | goto invalid; | |
5635 | ||
5636 | mark_matching_switches (atom, end_atom, a_is_starred); | |
5637 | ||
5638 | if (*p == '}') | |
5639 | process_marked_switches (); | |
5640 | break; | |
5641 | ||
5642 | case '|': case ':': | |
5643 | /* Substitute some text if the current atom appears as a switch | |
5644 | or suffix. */ | |
5645 | disjunct_set = true; | |
5646 | if (ordered_set) | |
5647 | goto invalid; | |
5648 | ||
5649 | if (atom == end_atom) | |
5650 | { | |
5651 | if (!n_way_choice || disj_matched || *p == '|' | |
5652 | || a_is_negated || a_is_suffix || a_is_spectype | |
5653 | || a_is_starred) | |
5654 | goto invalid; | |
5655 | ||
5656 | /* An empty term may appear as the last choice of an | |
5657 | N-way choice set; it means "otherwise". */ | |
5658 | a_must_be_last = true; | |
5659 | disj_matched = !n_way_matched; | |
5660 | disj_starred = false; | |
5661 | } | |
5662 | else | |
5663 | { | |
5664 | if ((a_is_suffix || a_is_spectype) && a_is_starred) | |
5665 | goto invalid; | |
5666 | ||
5667 | if (!a_is_starred) | |
5668 | disj_starred = false; | |
5669 | ||
5670 | /* Don't bother testing this atom if we already have a | |
5671 | match. */ | |
5672 | if (!disj_matched && !n_way_matched) | |
5673 | { | |
5674 | if (a_is_suffix) | |
5675 | a_matched = input_suffix_matches (atom, end_atom); | |
5676 | else if (a_is_spectype) | |
5677 | a_matched = input_spec_matches (atom, end_atom); | |
5678 | else | |
5679 | a_matched = switch_matches (atom, end_atom, a_is_starred); | |
5680 | ||
5681 | if (a_matched != a_is_negated) | |
5682 | { | |
5683 | disj_matched = true; | |
5684 | d_atom = atom; | |
5685 | d_end_atom = end_atom; | |
5686 | } | |
5687 | } | |
5688 | } | |
5689 | ||
5690 | if (*p == ':') | |
5691 | { | |
5692 | /* Found the body, that is, the text to substitute if the | |
5693 | current disjunction matches. */ | |
5694 | p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred, | |
5695 | disj_matched && !n_way_matched); | |
5696 | if (p == 0) | |
5697 | return 0; | |
5698 | ||
5699 | /* If we have an N-way choice, reset state for the next | |
5700 | disjunction. */ | |
5701 | if (*p == ';') | |
5702 | { | |
5703 | n_way_choice = true; | |
5704 | n_way_matched |= disj_matched; | |
5705 | disj_matched = false; | |
5706 | disj_starred = true; | |
5707 | d_atom = d_end_atom = NULL; | |
5708 | } | |
5709 | } | |
5710 | break; | |
5711 | ||
5712 | default: | |
5713 | goto invalid; | |
5714 | } | |
5715 | } | |
5716 | while (*p++ != '}'); | |
5717 | ||
5718 | return p; | |
5719 | ||
5720 | invalid: | |
5721 | fatal_error ("braced spec %qs is invalid at %qc", orig, *p); | |
5722 | ||
5723 | #undef SKIP_WHITE | |
5724 | } | |
5725 | ||
5726 | /* Subroutine of handle_braces. Scan and process a brace substitution body | |
5727 | (X in the description of %{} syntax). P points one past the colon; | |
5728 | ATOM and END_ATOM bracket the first atom which was found to be true | |
5729 | (present) in the current disjunction; STARRED indicates whether all | |
5730 | the atoms in the current disjunction were starred (for syntax validation); | |
5731 | MATCHED indicates whether the disjunction matched or not, and therefore | |
5732 | whether or not the body is to be processed through do_spec_1 or just | |
5733 | skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1 | |
5734 | returns -1. */ | |
5735 | ||
5736 | static const char * | |
5737 | process_brace_body (const char *p, const char *atom, const char *end_atom, | |
5738 | int starred, int matched) | |
5739 | { | |
5740 | const char *body, *end_body; | |
5741 | unsigned int nesting_level; | |
5742 | bool have_subst = false; | |
5743 | ||
5744 | /* Locate the closing } or ;, honoring nested braces. | |
5745 | Trim trailing whitespace. */ | |
5746 | body = p; | |
5747 | nesting_level = 1; | |
5748 | for (;;) | |
5749 | { | |
5750 | if (*p == '{') | |
5751 | nesting_level++; | |
5752 | else if (*p == '}') | |
5753 | { | |
5754 | if (!--nesting_level) | |
5755 | break; | |
5756 | } | |
5757 | else if (*p == ';' && nesting_level == 1) | |
5758 | break; | |
5759 | else if (*p == '%' && p[1] == '*' && nesting_level == 1) | |
5760 | have_subst = true; | |
5761 | else if (*p == '\0') | |
5762 | goto invalid; | |
5763 | p++; | |
5764 | } | |
5765 | ||
5766 | end_body = p; | |
5767 | while (end_body[-1] == ' ' || end_body[-1] == '\t') | |
5768 | end_body--; | |
5769 | ||
5770 | if (have_subst && !starred) | |
5771 | goto invalid; | |
5772 | ||
5773 | if (matched) | |
5774 | { | |
5775 | /* Copy the substitution body to permanent storage and execute it. | |
5776 | If have_subst is false, this is a simple matter of running the | |
5777 | body through do_spec_1... */ | |
5778 | char *string = save_string (body, end_body - body); | |
5779 | if (!have_subst) | |
5780 | { | |
5781 | if (do_spec_1 (string, 0, NULL) < 0) | |
5782 | return 0; | |
5783 | } | |
5784 | else | |
5785 | { | |
5786 | /* ... but if have_subst is true, we have to process the | |
5787 | body once for each matching switch, with %* set to the | |
5788 | variant part of the switch. */ | |
5789 | unsigned int hard_match_len = end_atom - atom; | |
5790 | int i; | |
5791 | ||
5792 | for (i = 0; i < n_switches; i++) | |
5793 | if (!strncmp (switches[i].part1, atom, hard_match_len) | |
5794 | && check_live_switch (i, hard_match_len)) | |
5795 | { | |
5796 | if (do_spec_1 (string, 0, | |
5797 | &switches[i].part1[hard_match_len]) < 0) | |
5798 | return 0; | |
5799 | /* Pass any arguments this switch has. */ | |
5800 | give_switch (i, 1); | |
5801 | suffix_subst = NULL; | |
5802 | } | |
5803 | } | |
5804 | } | |
5805 | ||
5806 | return p; | |
5807 | ||
5808 | invalid: | |
5809 | fatal_error ("braced spec body %qs is invalid", body); | |
5810 | } | |
5811 | \f | |
5812 | /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch | |
5813 | on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*} | |
5814 | spec, or -1 if either exact match or %* is used. | |
5815 | ||
5816 | A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch | |
5817 | whose value does not begin with "no-" is obsoleted by the same value | |
5818 | with the "no-", similarly for a switch with the "no-" prefix. */ | |
5819 | ||
5820 | static int | |
5821 | check_live_switch (int switchnum, int prefix_length) | |
5822 | { | |
5823 | const char *name = switches[switchnum].part1; | |
5824 | int i; | |
5825 | ||
5826 | /* If we already processed this switch and determined if it was | |
5827 | live or not, return our past determination. */ | |
5828 | if (switches[switchnum].live_cond != 0) | |
5829 | return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0 | |
5830 | && (switches[switchnum].live_cond & SWITCH_FALSE) == 0 | |
5831 | && (switches[switchnum].live_cond & SWITCH_IGNORE_PERMANENTLY) | |
5832 | == 0); | |
5833 | ||
5834 | /* In the common case of {<at-most-one-letter>*}, a negating | |
5835 | switch would always match, so ignore that case. We will just | |
5836 | send the conflicting switches to the compiler phase. */ | |
5837 | if (prefix_length >= 0 && prefix_length <= 1) | |
5838 | return 1; | |
5839 | ||
5840 | /* Now search for duplicate in a manner that depends on the name. */ | |
5841 | switch (*name) | |
5842 | { | |
5843 | case 'O': | |
5844 | for (i = switchnum + 1; i < n_switches; i++) | |
5845 | if (switches[i].part1[0] == 'O') | |
5846 | { | |
5847 | switches[switchnum].validated = 1; | |
5848 | switches[switchnum].live_cond = SWITCH_FALSE; | |
5849 | return 0; | |
5850 | } | |
5851 | break; | |
5852 | ||
5853 | case 'W': case 'f': case 'm': | |
5854 | if (! strncmp (name + 1, "no-", 3)) | |
5855 | { | |
5856 | /* We have Xno-YYY, search for XYYY. */ | |
5857 | for (i = switchnum + 1; i < n_switches; i++) | |
5858 | if (switches[i].part1[0] == name[0] | |
5859 | && ! strcmp (&switches[i].part1[1], &name[4])) | |
5860 | { | |
5861 | switches[switchnum].validated = 1; | |
5862 | switches[switchnum].live_cond = SWITCH_FALSE; | |
5863 | return 0; | |
5864 | } | |
5865 | } | |
5866 | else | |
5867 | { | |
5868 | /* We have XYYY, search for Xno-YYY. */ | |
5869 | for (i = switchnum + 1; i < n_switches; i++) | |
5870 | if (switches[i].part1[0] == name[0] | |
5871 | && switches[i].part1[1] == 'n' | |
5872 | && switches[i].part1[2] == 'o' | |
5873 | && switches[i].part1[3] == '-' | |
5874 | && !strcmp (&switches[i].part1[4], &name[1])) | |
5875 | { | |
5876 | switches[switchnum].validated = 1; | |
5877 | switches[switchnum].live_cond = SWITCH_FALSE; | |
5878 | return 0; | |
5879 | } | |
5880 | } | |
5881 | break; | |
5882 | } | |
5883 | ||
5884 | /* Otherwise the switch is live. */ | |
5885 | switches[switchnum].live_cond |= SWITCH_LIVE; | |
5886 | return 1; | |
5887 | } | |
5888 | \f | |
5889 | /* Pass a switch to the current accumulating command | |
5890 | in the same form that we received it. | |
5891 | SWITCHNUM identifies the switch; it is an index into | |
5892 | the vector of switches gcc received, which is `switches'. | |
5893 | This cannot fail since it never finishes a command line. | |
5894 | ||
5895 | If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */ | |
5896 | ||
5897 | static void | |
5898 | give_switch (int switchnum, int omit_first_word) | |
5899 | { | |
5900 | if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0) | |
5901 | return; | |
5902 | ||
5903 | if (!omit_first_word) | |
5904 | { | |
5905 | do_spec_1 ("-", 0, NULL); | |
5906 | do_spec_1 (switches[switchnum].part1, 1, NULL); | |
5907 | } | |
5908 | ||
5909 | if (switches[switchnum].args != 0) | |
5910 | { | |
5911 | const char **p; | |
5912 | for (p = switches[switchnum].args; *p; p++) | |
5913 | { | |
5914 | const char *arg = *p; | |
5915 | ||
5916 | do_spec_1 (" ", 0, NULL); | |
5917 | if (suffix_subst) | |
5918 | { | |
5919 | unsigned length = strlen (arg); | |
5920 | int dot = 0; | |
5921 | ||
5922 | while (length-- && !IS_DIR_SEPARATOR (arg[length])) | |
5923 | if (arg[length] == '.') | |
5924 | { | |
5925 | (CONST_CAST(char *, arg))[length] = 0; | |
5926 | dot = 1; | |
5927 | break; | |
5928 | } | |
5929 | do_spec_1 (arg, 1, NULL); | |
5930 | if (dot) | |
5931 | (CONST_CAST(char *, arg))[length] = '.'; | |
5932 | do_spec_1 (suffix_subst, 1, NULL); | |
5933 | } | |
5934 | else | |
5935 | do_spec_1 (arg, 1, NULL); | |
5936 | } | |
5937 | } | |
5938 | ||
5939 | do_spec_1 (" ", 0, NULL); | |
5940 | switches[switchnum].validated = 1; | |
5941 | } | |
5942 | \f | |
5943 | /* Search for a file named NAME trying various prefixes including the | |
5944 | user's -B prefix and some standard ones. | |
5945 | Return the absolute file name found. If nothing is found, return NAME. */ | |
5946 | ||
5947 | static const char * | |
5948 | find_file (const char *name) | |
5949 | { | |
5950 | char *newname = find_a_file (&startfile_prefixes, name, R_OK, true); | |
5951 | return newname ? newname : name; | |
5952 | } | |
5953 | ||
5954 | /* Determine whether a directory exists. If LINKER, return 0 for | |
5955 | certain fixed names not needed by the linker. */ | |
5956 | ||
5957 | static int | |
5958 | is_directory (const char *path1, bool linker) | |
5959 | { | |
5960 | int len1; | |
5961 | char *path; | |
5962 | char *cp; | |
5963 | struct stat st; | |
5964 | ||
5965 | /* Ensure the string ends with "/.". The resulting path will be a | |
5966 | directory even if the given path is a symbolic link. */ | |
5967 | len1 = strlen (path1); | |
5968 | path = (char *) alloca (3 + len1); | |
5969 | memcpy (path, path1, len1); | |
5970 | cp = path + len1; | |
5971 | if (!IS_DIR_SEPARATOR (cp[-1])) | |
5972 | *cp++ = DIR_SEPARATOR; | |
5973 | *cp++ = '.'; | |
5974 | *cp = '\0'; | |
5975 | ||
5976 | /* Exclude directories that the linker is known to search. */ | |
5977 | if (linker | |
5978 | && IS_DIR_SEPARATOR (path[0]) | |
5979 | && ((cp - path == 6 | |
5980 | && filename_ncmp (path + 1, "lib", 3) == 0) | |
5981 | || (cp - path == 10 | |
5982 | && filename_ncmp (path + 1, "usr", 3) == 0 | |
5983 | && IS_DIR_SEPARATOR (path[4]) | |
5984 | && filename_ncmp (path + 5, "lib", 3) == 0))) | |
5985 | return 0; | |
5986 | ||
5987 | return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode)); | |
5988 | } | |
5989 | ||
5990 | /* Set up the various global variables to indicate that we're processing | |
5991 | the input file named FILENAME. */ | |
5992 | ||
5993 | void | |
5994 | set_input (const char *filename) | |
5995 | { | |
5996 | const char *p; | |
5997 | ||
5998 | gcc_input_filename = filename; | |
5999 | input_filename_length = strlen (gcc_input_filename); | |
6000 | input_basename = lbasename (gcc_input_filename); | |
6001 | ||
6002 | /* Find a suffix starting with the last period, | |
6003 | and set basename_length to exclude that suffix. */ | |
6004 | basename_length = strlen (input_basename); | |
6005 | suffixed_basename_length = basename_length; | |
6006 | p = input_basename + basename_length; | |
6007 | while (p != input_basename && *p != '.') | |
6008 | --p; | |
6009 | if (*p == '.' && p != input_basename) | |
6010 | { | |
6011 | basename_length = p - input_basename; | |
6012 | input_suffix = p + 1; | |
6013 | } | |
6014 | else | |
6015 | input_suffix = ""; | |
6016 | ||
6017 | /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then | |
6018 | we will need to do a stat on the gcc_input_filename. The | |
6019 | INPUT_STAT_SET signals that the stat is needed. */ | |
6020 | input_stat_set = 0; | |
6021 | } | |
6022 | \f | |
6023 | /* On fatal signals, delete all the temporary files. */ | |
6024 | ||
6025 | static void | |
6026 | fatal_signal (int signum) | |
6027 | { | |
6028 | signal (signum, SIG_DFL); | |
6029 | delete_failure_queue (); | |
6030 | delete_temp_files (); | |
6031 | /* Get the same signal again, this time not handled, | |
6032 | so its normal effect occurs. */ | |
6033 | kill (getpid (), signum); | |
6034 | } | |
6035 | ||
6036 | /* Compare the contents of the two files named CMPFILE[0] and | |
6037 | CMPFILE[1]. Return zero if they're identical, nonzero | |
6038 | otherwise. */ | |
6039 | ||
6040 | static int | |
6041 | compare_files (char *cmpfile[]) | |
6042 | { | |
6043 | int ret = 0; | |
6044 | FILE *temp[2] = { NULL, NULL }; | |
6045 | int i; | |
6046 | ||
6047 | #if HAVE_MMAP_FILE | |
6048 | { | |
6049 | size_t length[2]; | |
6050 | void *map[2] = { NULL, NULL }; | |
6051 | ||
6052 | for (i = 0; i < 2; i++) | |
6053 | { | |
6054 | struct stat st; | |
6055 | ||
6056 | if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode)) | |
6057 | { | |
6058 | error ("%s: could not determine length of compare-debug file %s", | |
6059 | gcc_input_filename, cmpfile[i]); | |
6060 | ret = 1; | |
6061 | break; | |
6062 | } | |
6063 | ||
6064 | length[i] = st.st_size; | |
6065 | } | |
6066 | ||
6067 | if (!ret && length[0] != length[1]) | |
6068 | { | |
6069 | error ("%s: -fcompare-debug failure (length)", gcc_input_filename); | |
6070 | ret = 1; | |
6071 | } | |
6072 | ||
6073 | if (!ret) | |
6074 | for (i = 0; i < 2; i++) | |
6075 | { | |
6076 | int fd = open (cmpfile[i], O_RDONLY); | |
6077 | if (fd < 0) | |
6078 | { | |
6079 | error ("%s: could not open compare-debug file %s", | |
6080 | gcc_input_filename, cmpfile[i]); | |
6081 | ret = 1; | |
6082 | break; | |
6083 | } | |
6084 | ||
6085 | map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0); | |
6086 | close (fd); | |
6087 | ||
6088 | if (map[i] == (void *) MAP_FAILED) | |
6089 | { | |
6090 | ret = -1; | |
6091 | break; | |
6092 | } | |
6093 | } | |
6094 | ||
6095 | if (!ret) | |
6096 | { | |
6097 | if (memcmp (map[0], map[1], length[0]) != 0) | |
6098 | { | |
6099 | error ("%s: -fcompare-debug failure", gcc_input_filename); | |
6100 | ret = 1; | |
6101 | } | |
6102 | } | |
6103 | ||
6104 | for (i = 0; i < 2; i++) | |
6105 | if (map[i]) | |
6106 | munmap ((caddr_t) map[i], length[i]); | |
6107 | ||
6108 | if (ret >= 0) | |
6109 | return ret; | |
6110 | ||
6111 | ret = 0; | |
6112 | } | |
6113 | #endif | |
6114 | ||
6115 | for (i = 0; i < 2; i++) | |
6116 | { | |
6117 | temp[i] = fopen (cmpfile[i], "r"); | |
6118 | if (!temp[i]) | |
6119 | { | |
6120 | error ("%s: could not open compare-debug file %s", | |
6121 | gcc_input_filename, cmpfile[i]); | |
6122 | ret = 1; | |
6123 | break; | |
6124 | } | |
6125 | } | |
6126 | ||
6127 | if (!ret && temp[0] && temp[1]) | |
6128 | for (;;) | |
6129 | { | |
6130 | int c0, c1; | |
6131 | c0 = fgetc (temp[0]); | |
6132 | c1 = fgetc (temp[1]); | |
6133 | ||
6134 | if (c0 != c1) | |
6135 | { | |
6136 | error ("%s: -fcompare-debug failure", | |
6137 | gcc_input_filename); | |
6138 | ret = 1; | |
6139 | break; | |
6140 | } | |
6141 | ||
6142 | if (c0 == EOF) | |
6143 | break; | |
6144 | } | |
6145 | ||
6146 | for (i = 1; i >= 0; i--) | |
6147 | { | |
6148 | if (temp[i]) | |
6149 | fclose (temp[i]); | |
6150 | } | |
6151 | ||
6152 | return ret; | |
6153 | } | |
6154 | ||
6155 | extern int main (int, char **); | |
6156 | ||
6157 | int | |
6158 | main (int argc, char **argv) | |
6159 | { | |
6160 | size_t i; | |
6161 | int value; | |
6162 | int linker_was_run = 0; | |
6163 | int lang_n_infiles = 0; | |
6164 | int num_linker_inputs = 0; | |
6165 | char *explicit_link_files; | |
6166 | char *specs_file; | |
6167 | char *lto_wrapper_file; | |
6168 | const char *p; | |
6169 | struct user_specs *uptr; | |
6170 | char **old_argv = argv; | |
6171 | struct cl_decoded_option *decoded_options; | |
6172 | unsigned int decoded_options_count; | |
6173 | ||
6174 | /* Initialize here, not in definition. The IRIX 6 O32 cc sometimes chokes | |
6175 | on ?: in file-scope variable initializations. */ | |
6176 | asm_debug = ASM_DEBUG_SPEC; | |
6177 | ||
6178 | p = argv[0] + strlen (argv[0]); | |
6179 | while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1])) | |
6180 | --p; | |
6181 | progname = p; | |
6182 | ||
6183 | xmalloc_set_program_name (progname); | |
6184 | ||
6185 | expandargv (&argc, &argv); | |
6186 | ||
6187 | /* Determine if any expansions were made. */ | |
6188 | if (argv != old_argv) | |
6189 | at_file_supplied = true; | |
6190 | ||
6191 | /* Register the language-independent parameters. */ | |
6192 | global_init_params (); | |
6193 | finish_params (); | |
6194 | ||
6195 | init_options_struct (&global_options, &global_options_set); | |
6196 | ||
6197 | decode_cmdline_options_to_array (argc, CONST_CAST2 (const char **, char **, | |
6198 | argv), | |
6199 | CL_DRIVER, | |
6200 | &decoded_options, &decoded_options_count); | |
6201 | ||
6202 | #ifdef GCC_DRIVER_HOST_INITIALIZATION | |
6203 | /* Perform host dependent initialization when needed. */ | |
6204 | GCC_DRIVER_HOST_INITIALIZATION; | |
6205 | #endif | |
6206 | ||
6207 | /* Unlock the stdio streams. */ | |
6208 | unlock_std_streams (); | |
6209 | ||
6210 | gcc_init_libintl (); | |
6211 | ||
6212 | diagnostic_initialize (global_dc, 0); | |
6213 | if (atexit (delete_temp_files) != 0) | |
6214 | fatal_error ("atexit failed"); | |
6215 | ||
6216 | if (signal (SIGINT, SIG_IGN) != SIG_IGN) | |
6217 | signal (SIGINT, fatal_signal); | |
6218 | #ifdef SIGHUP | |
6219 | if (signal (SIGHUP, SIG_IGN) != SIG_IGN) | |
6220 | signal (SIGHUP, fatal_signal); | |
6221 | #endif | |
6222 | if (signal (SIGTERM, SIG_IGN) != SIG_IGN) | |
6223 | signal (SIGTERM, fatal_signal); | |
6224 | #ifdef SIGPIPE | |
6225 | if (signal (SIGPIPE, SIG_IGN) != SIG_IGN) | |
6226 | signal (SIGPIPE, fatal_signal); | |
6227 | #endif | |
6228 | #ifdef SIGCHLD | |
6229 | /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will | |
6230 | receive the signal. A different setting is inheritable */ | |
6231 | signal (SIGCHLD, SIG_DFL); | |
6232 | #endif | |
6233 | ||
6234 | /* Parsing and gimplification sometimes need quite large stack. | |
6235 | Increase stack size limits if possible. */ | |
6236 | stack_limit_increase (64 * 1024 * 1024); | |
6237 | ||
6238 | /* Allocate the argument vector. */ | |
6239 | alloc_args (); | |
6240 | ||
6241 | obstack_init (&obstack); | |
6242 | ||
6243 | /* Build multilib_select, et. al from the separate lines that make up each | |
6244 | multilib selection. */ | |
6245 | { | |
6246 | const char *const *q = multilib_raw; | |
6247 | int need_space; | |
6248 | ||
6249 | obstack_init (&multilib_obstack); | |
6250 | while ((p = *q++) != (char *) 0) | |
6251 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
6252 | ||
6253 | obstack_1grow (&multilib_obstack, 0); | |
6254 | multilib_select = XOBFINISH (&multilib_obstack, const char *); | |
6255 | ||
6256 | q = multilib_matches_raw; | |
6257 | while ((p = *q++) != (char *) 0) | |
6258 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
6259 | ||
6260 | obstack_1grow (&multilib_obstack, 0); | |
6261 | multilib_matches = XOBFINISH (&multilib_obstack, const char *); | |
6262 | ||
6263 | q = multilib_exclusions_raw; | |
6264 | while ((p = *q++) != (char *) 0) | |
6265 | obstack_grow (&multilib_obstack, p, strlen (p)); | |
6266 | ||
6267 | obstack_1grow (&multilib_obstack, 0); | |
6268 | multilib_exclusions = XOBFINISH (&multilib_obstack, const char *); | |
6269 | ||
6270 | need_space = FALSE; | |
6271 | for (i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++) | |
6272 | { | |
6273 | if (need_space) | |
6274 | obstack_1grow (&multilib_obstack, ' '); | |
6275 | obstack_grow (&multilib_obstack, | |
6276 | multilib_defaults_raw[i], | |
6277 | strlen (multilib_defaults_raw[i])); | |
6278 | need_space = TRUE; | |
6279 | } | |
6280 | ||
6281 | obstack_1grow (&multilib_obstack, 0); | |
6282 | multilib_defaults = XOBFINISH (&multilib_obstack, const char *); | |
6283 | } | |
6284 | ||
6285 | #ifdef INIT_ENVIRONMENT | |
6286 | /* Set up any other necessary machine specific environment variables. */ | |
6287 | xputenv (INIT_ENVIRONMENT); | |
6288 | #endif | |
6289 | ||
6290 | /* Make a table of what switches there are (switches, n_switches). | |
6291 | Make a table of specified input files (infiles, n_infiles). | |
6292 | Decode switches that are handled locally. */ | |
6293 | ||
6294 | process_command (decoded_options_count, decoded_options); | |
6295 | ||
6296 | /* Initialize the vector of specs to just the default. | |
6297 | This means one element containing 0s, as a terminator. */ | |
6298 | ||
6299 | compilers = XNEWVAR (struct compiler, sizeof default_compilers); | |
6300 | memcpy (compilers, default_compilers, sizeof default_compilers); | |
6301 | n_compilers = n_default_compilers; | |
6302 | ||
6303 | /* Read specs from a file if there is one. */ | |
6304 | ||
6305 | machine_suffix = concat (spec_machine, dir_separator_str, | |
6306 | spec_version, dir_separator_str, NULL); | |
6307 | just_machine_suffix = concat (spec_machine, dir_separator_str, NULL); | |
6308 | ||
6309 | specs_file = find_a_file (&startfile_prefixes, "specs", R_OK, true); | |
6310 | /* Read the specs file unless it is a default one. */ | |
6311 | if (specs_file != 0 && strcmp (specs_file, "specs")) | |
6312 | read_specs (specs_file, TRUE); | |
6313 | else | |
6314 | init_spec (); | |
6315 | ||
6316 | /* We need to check standard_exec_prefix/just_machine_suffix/specs | |
6317 | for any override of as, ld and libraries. */ | |
6318 | specs_file = (char *) alloca (strlen (standard_exec_prefix) | |
6319 | + strlen (just_machine_suffix) + sizeof ("specs")); | |
6320 | ||
6321 | strcpy (specs_file, standard_exec_prefix); | |
6322 | strcat (specs_file, just_machine_suffix); | |
6323 | strcat (specs_file, "specs"); | |
6324 | if (access (specs_file, R_OK) == 0) | |
6325 | read_specs (specs_file, TRUE); | |
6326 | ||
6327 | /* Process any configure-time defaults specified for the command line | |
6328 | options, via OPTION_DEFAULT_SPECS. */ | |
6329 | for (i = 0; i < ARRAY_SIZE (option_default_specs); i++) | |
6330 | do_option_spec (option_default_specs[i].name, | |
6331 | option_default_specs[i].spec); | |
6332 | ||
6333 | /* Process DRIVER_SELF_SPECS, adding any new options to the end | |
6334 | of the command line. */ | |
6335 | ||
6336 | for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++) | |
6337 | do_self_spec (driver_self_specs[i]); | |
6338 | ||
6339 | /* If not cross-compiling, look for executables in the standard | |
6340 | places. */ | |
6341 | if (*cross_compile == '0') | |
6342 | { | |
6343 | if (*md_exec_prefix) | |
6344 | { | |
6345 | add_prefix (&exec_prefixes, md_exec_prefix, "GCC", | |
6346 | PREFIX_PRIORITY_LAST, 0, 0); | |
6347 | } | |
6348 | } | |
6349 | ||
6350 | /* Process sysroot_suffix_spec. */ | |
6351 | if (*sysroot_suffix_spec != 0 | |
6352 | && do_spec_2 (sysroot_suffix_spec) == 0) | |
6353 | { | |
6354 | if (VEC_length (const_char_p, argbuf) > 1) | |
6355 | error ("spec failure: more than one arg to SYSROOT_SUFFIX_SPEC"); | |
6356 | else if (VEC_length (const_char_p, argbuf) == 1) | |
6357 | target_sysroot_suffix = xstrdup (VEC_last (const_char_p, argbuf)); | |
6358 | } | |
6359 | ||
6360 | #ifdef HAVE_LD_SYSROOT | |
6361 | /* Pass the --sysroot option to the linker, if it supports that. If | |
6362 | there is a sysroot_suffix_spec, it has already been processed by | |
6363 | this point, so target_system_root really is the system root we | |
6364 | should be using. */ | |
6365 | if (target_system_root) | |
6366 | { | |
6367 | obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) ")); | |
6368 | obstack_grow0 (&obstack, link_spec, strlen (link_spec)); | |
6369 | set_spec ("link", XOBFINISH (&obstack, const char *)); | |
6370 | } | |
6371 | #endif | |
6372 | ||
6373 | /* Process sysroot_hdrs_suffix_spec. */ | |
6374 | if (*sysroot_hdrs_suffix_spec != 0 | |
6375 | && do_spec_2 (sysroot_hdrs_suffix_spec) == 0) | |
6376 | { | |
6377 | if (VEC_length (const_char_p, argbuf) > 1) | |
6378 | error ("spec failure: more than one arg to SYSROOT_HEADERS_SUFFIX_SPEC"); | |
6379 | else if (VEC_length (const_char_p, argbuf) == 1) | |
6380 | target_sysroot_hdrs_suffix = xstrdup (VEC_last (const_char_p, argbuf)); | |
6381 | } | |
6382 | ||
6383 | /* Look for startfiles in the standard places. */ | |
6384 | if (*startfile_prefix_spec != 0 | |
6385 | && do_spec_2 (startfile_prefix_spec) == 0 | |
6386 | && do_spec_1 (" ", 0, NULL) == 0) | |
6387 | { | |
6388 | const char *arg; | |
6389 | int ndx; | |
6390 | FOR_EACH_VEC_ELT (const_char_p, argbuf, ndx, arg) | |
6391 | add_sysrooted_prefix (&startfile_prefixes, arg, "BINUTILS", | |
6392 | PREFIX_PRIORITY_LAST, 0, 1); | |
6393 | } | |
6394 | /* We should eventually get rid of all these and stick to | |
6395 | startfile_prefix_spec exclusively. */ | |
6396 | else if (*cross_compile == '0' || target_system_root) | |
6397 | { | |
6398 | if (*md_startfile_prefix) | |
6399 | add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix, | |
6400 | "GCC", PREFIX_PRIORITY_LAST, 0, 1); | |
6401 | ||
6402 | if (*md_startfile_prefix_1) | |
6403 | add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1, | |
6404 | "GCC", PREFIX_PRIORITY_LAST, 0, 1); | |
6405 | ||
6406 | /* If standard_startfile_prefix is relative, base it on | |
6407 | standard_exec_prefix. This lets us move the installed tree | |
6408 | as a unit. If GCC_EXEC_PREFIX is defined, base | |
6409 | standard_startfile_prefix on that as well. | |
6410 | ||
6411 | If the prefix is relative, only search it for native compilers; | |
6412 | otherwise we will search a directory containing host libraries. */ | |
6413 | if (IS_ABSOLUTE_PATH (standard_startfile_prefix)) | |
6414 | add_sysrooted_prefix (&startfile_prefixes, | |
6415 | standard_startfile_prefix, "BINUTILS", | |
6416 | PREFIX_PRIORITY_LAST, 0, 1); | |
6417 | else if (*cross_compile == '0') | |
6418 | { | |
6419 | add_prefix (&startfile_prefixes, | |
6420 | concat (gcc_exec_prefix | |
6421 | ? gcc_exec_prefix : standard_exec_prefix, | |
6422 | machine_suffix, | |
6423 | standard_startfile_prefix, NULL), | |
6424 | NULL, PREFIX_PRIORITY_LAST, 0, 1); | |
6425 | } | |
6426 | ||
6427 | /* Sysrooted prefixes are relocated because target_system_root is | |
6428 | also relocated by gcc_exec_prefix. */ | |
6429 | if (*standard_startfile_prefix_1) | |
6430 | add_sysrooted_prefix (&startfile_prefixes, | |
6431 | standard_startfile_prefix_1, "BINUTILS", | |
6432 | PREFIX_PRIORITY_LAST, 0, 1); | |
6433 | if (*standard_startfile_prefix_2) | |
6434 | add_sysrooted_prefix (&startfile_prefixes, | |
6435 | standard_startfile_prefix_2, "BINUTILS", | |
6436 | PREFIX_PRIORITY_LAST, 0, 1); | |
6437 | } | |
6438 | ||
6439 | /* Process any user specified specs in the order given on the command | |
6440 | line. */ | |
6441 | for (uptr = user_specs_head; uptr; uptr = uptr->next) | |
6442 | { | |
6443 | char *filename = find_a_file (&startfile_prefixes, uptr->filename, | |
6444 | R_OK, true); | |
6445 | read_specs (filename ? filename : uptr->filename, FALSE); | |
6446 | } | |
6447 | ||
6448 | /* Process any user self specs. */ | |
6449 | { | |
6450 | struct spec_list *sl; | |
6451 | for (sl = specs; sl; sl = sl->next) | |
6452 | if (sl->name_len == sizeof "self_spec" - 1 | |
6453 | && !strcmp (sl->name, "self_spec")) | |
6454 | do_self_spec (*sl->ptr_spec); | |
6455 | } | |
6456 | ||
6457 | if (compare_debug) | |
6458 | { | |
6459 | enum save_temps save; | |
6460 | ||
6461 | if (!compare_debug_second) | |
6462 | { | |
6463 | n_switches_debug_check[1] = n_switches; | |
6464 | n_switches_alloc_debug_check[1] = n_switches_alloc; | |
6465 | switches_debug_check[1] = XDUPVEC (struct switchstr, switches, | |
6466 | n_switches_alloc); | |
6467 | ||
6468 | do_self_spec ("%:compare-debug-self-opt()"); | |
6469 | n_switches_debug_check[0] = n_switches; | |
6470 | n_switches_alloc_debug_check[0] = n_switches_alloc; | |
6471 | switches_debug_check[0] = switches; | |
6472 | ||
6473 | n_switches = n_switches_debug_check[1]; | |
6474 | n_switches_alloc = n_switches_alloc_debug_check[1]; | |
6475 | switches = switches_debug_check[1]; | |
6476 | } | |
6477 | ||
6478 | /* Avoid crash when computing %j in this early. */ | |
6479 | save = save_temps_flag; | |
6480 | save_temps_flag = SAVE_TEMPS_NONE; | |
6481 | ||
6482 | compare_debug = -compare_debug; | |
6483 | do_self_spec ("%:compare-debug-self-opt()"); | |
6484 | ||
6485 | save_temps_flag = save; | |
6486 | ||
6487 | if (!compare_debug_second) | |
6488 | { | |
6489 | n_switches_debug_check[1] = n_switches; | |
6490 | n_switches_alloc_debug_check[1] = n_switches_alloc; | |
6491 | switches_debug_check[1] = switches; | |
6492 | compare_debug = -compare_debug; | |
6493 | n_switches = n_switches_debug_check[0]; | |
6494 | n_switches_alloc = n_switches_debug_check[0]; | |
6495 | switches = switches_debug_check[0]; | |
6496 | } | |
6497 | } | |
6498 | ||
6499 | ||
6500 | /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */ | |
6501 | if (gcc_exec_prefix) | |
6502 | gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str, | |
6503 | spec_version, dir_separator_str, NULL); | |
6504 | ||
6505 | /* Now we have the specs. | |
6506 | Set the `valid' bits for switches that match anything in any spec. */ | |
6507 | ||
6508 | validate_all_switches (); | |
6509 | ||
6510 | /* Now that we have the switches and the specs, set | |
6511 | the subdirectory based on the options. */ | |
6512 | set_multilib_dir (); | |
6513 | ||
6514 | /* Set up to remember the pathname of gcc and any options | |
6515 | needed for collect. We use argv[0] instead of progname because | |
6516 | we need the complete pathname. */ | |
6517 | obstack_init (&collect_obstack); | |
6518 | obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1); | |
6519 | obstack_grow (&collect_obstack, argv[0], strlen (argv[0]) + 1); | |
6520 | xputenv (XOBFINISH (&collect_obstack, char *)); | |
6521 | ||
6522 | /* Set up to remember the pathname of the lto wrapper. */ | |
6523 | ||
6524 | if (have_c) | |
6525 | lto_wrapper_file = NULL; | |
6526 | else | |
6527 | lto_wrapper_file = find_a_file (&exec_prefixes, "lto-wrapper", | |
6528 | X_OK, false); | |
6529 | if (lto_wrapper_file) | |
6530 | { | |
5ce9237c | 6531 | lto_wrapper_file = convert_white_space (lto_wrapper_file); |
e4b17023 JM |
6532 | lto_wrapper_spec = lto_wrapper_file; |
6533 | obstack_init (&collect_obstack); | |
6534 | obstack_grow (&collect_obstack, "COLLECT_LTO_WRAPPER=", | |
6535 | sizeof ("COLLECT_LTO_WRAPPER=") - 1); | |
6536 | obstack_grow (&collect_obstack, lto_wrapper_spec, | |
6537 | strlen (lto_wrapper_spec) + 1); | |
6538 | xputenv (XOBFINISH (&collect_obstack, char *)); | |
6539 | } | |
6540 | ||
6541 | /* Warn about any switches that no pass was interested in. */ | |
6542 | ||
6543 | for (i = 0; (int) i < n_switches; i++) | |
6544 | if (! switches[i].validated) | |
6545 | error ("unrecognized option %<-%s%>", switches[i].part1); | |
6546 | ||
6547 | /* Obey some of the options. */ | |
6548 | ||
6549 | if (print_search_dirs) | |
6550 | { | |
fdc4107c | 6551 | printf (_("install: %s\n"), STD_EXEC_PATH); |
e4b17023 JM |
6552 | printf (_("programs: %s\n"), |
6553 | build_search_list (&exec_prefixes, "", false, false)); | |
6554 | printf (_("libraries: %s\n"), | |
6555 | build_search_list (&startfile_prefixes, "", false, true)); | |
6556 | return (0); | |
6557 | } | |
6558 | ||
6559 | if (print_file_name) | |
6560 | { | |
6561 | printf ("%s\n", find_file (print_file_name)); | |
6562 | return (0); | |
6563 | } | |
6564 | ||
6565 | if (print_prog_name) | |
6566 | { | |
6567 | char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK, 0); | |
6568 | printf ("%s\n", (newname ? newname : print_prog_name)); | |
6569 | return (0); | |
6570 | } | |
6571 | ||
6572 | if (print_multi_lib) | |
6573 | { | |
6574 | print_multilib_info (); | |
6575 | return (0); | |
6576 | } | |
6577 | ||
6578 | if (print_multi_directory) | |
6579 | { | |
6580 | if (multilib_dir == NULL) | |
6581 | printf (".\n"); | |
6582 | else | |
6583 | printf ("%s\n", multilib_dir); | |
6584 | return (0); | |
6585 | } | |
6586 | ||
5ce9237c JM |
6587 | if (print_multiarch) |
6588 | { | |
6589 | if (multiarch_dir == NULL) | |
6590 | printf ("\n"); | |
6591 | else | |
6592 | printf ("%s\n", multiarch_dir); | |
6593 | return (0); | |
6594 | } | |
6595 | ||
e4b17023 JM |
6596 | if (print_sysroot) |
6597 | { | |
6598 | if (target_system_root) | |
6599 | { | |
6600 | if (target_sysroot_suffix) | |
6601 | printf ("%s%s\n", target_system_root, target_sysroot_suffix); | |
6602 | else | |
6603 | printf ("%s\n", target_system_root); | |
6604 | } | |
6605 | return (0); | |
6606 | } | |
6607 | ||
6608 | if (print_multi_os_directory) | |
6609 | { | |
6610 | if (multilib_os_dir == NULL) | |
6611 | printf (".\n"); | |
6612 | else | |
6613 | printf ("%s\n", multilib_os_dir); | |
6614 | return (0); | |
6615 | } | |
6616 | ||
6617 | if (print_sysroot_headers_suffix) | |
6618 | { | |
6619 | if (*sysroot_hdrs_suffix_spec) | |
6620 | { | |
6621 | printf("%s\n", (target_sysroot_hdrs_suffix | |
6622 | ? target_sysroot_hdrs_suffix | |
6623 | : "")); | |
6624 | return (0); | |
6625 | } | |
6626 | else | |
6627 | /* The error status indicates that only one set of fixed | |
6628 | headers should be built. */ | |
6629 | fatal_error ("not configured with sysroot headers suffix"); | |
6630 | } | |
6631 | ||
6632 | if (print_help_list) | |
6633 | { | |
6634 | display_help (); | |
6635 | ||
6636 | if (! verbose_flag) | |
6637 | { | |
6638 | printf (_("\nFor bug reporting instructions, please see:\n")); | |
6639 | printf ("%s.\n", bug_report_url); | |
6640 | ||
6641 | return (0); | |
6642 | } | |
6643 | ||
6644 | /* We do not exit here. Instead we have created a fake input file | |
6645 | called 'help-dummy' which needs to be compiled, and we pass this | |
6646 | on the various sub-processes, along with the --help switch. | |
6647 | Ensure their output appears after ours. */ | |
6648 | fputc ('\n', stdout); | |
6649 | fflush (stdout); | |
6650 | } | |
6651 | ||
6652 | if (print_version) | |
6653 | { | |
6654 | printf (_("%s %s%s\n"), progname, pkgversion_string, | |
6655 | version_string); | |
6656 | printf ("Copyright %s 2012 Free Software Foundation, Inc.\n", | |
6657 | _("(C)")); | |
6658 | fputs (_("This is free software; see the source for copying conditions. There is NO\n\ | |
6659 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"), | |
6660 | stdout); | |
6661 | if (! verbose_flag) | |
6662 | return 0; | |
6663 | ||
6664 | /* We do not exit here. We use the same mechanism of --help to print | |
6665 | the version of the sub-processes. */ | |
6666 | fputc ('\n', stdout); | |
6667 | fflush (stdout); | |
6668 | } | |
6669 | ||
6670 | if (verbose_flag) | |
6671 | { | |
6672 | int n; | |
6673 | const char *thrmod; | |
6674 | ||
6675 | fnotice (stderr, "Target: %s\n", spec_machine); | |
6676 | fnotice (stderr, "Configured with: %s\n", configuration_arguments); | |
6677 | ||
6678 | #ifdef THREAD_MODEL_SPEC | |
6679 | /* We could have defined THREAD_MODEL_SPEC to "%*" by default, | |
6680 | but there's no point in doing all this processing just to get | |
6681 | thread_model back. */ | |
6682 | obstack_init (&obstack); | |
6683 | do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model); | |
6684 | obstack_1grow (&obstack, '\0'); | |
6685 | thrmod = XOBFINISH (&obstack, const char *); | |
6686 | #else | |
6687 | thrmod = thread_model; | |
6688 | #endif | |
6689 | ||
6690 | fnotice (stderr, "Thread model: %s\n", thrmod); | |
6691 | ||
6692 | /* compiler_version is truncated at the first space when initialized | |
6693 | from version string, so truncate version_string at the first space | |
6694 | before comparing. */ | |
6695 | for (n = 0; version_string[n]; n++) | |
6696 | if (version_string[n] == ' ') | |
6697 | break; | |
6698 | ||
6699 | if (! strncmp (version_string, compiler_version, n) | |
6700 | && compiler_version[n] == 0) | |
6701 | fnotice (stderr, "gcc version %s %s\n", version_string, | |
6702 | pkgversion_string); | |
6703 | else | |
6704 | fnotice (stderr, "gcc driver version %s %sexecuting gcc version %s\n", | |
6705 | version_string, pkgversion_string, compiler_version); | |
6706 | ||
6707 | if (n_infiles == 0) | |
6708 | return (0); | |
6709 | } | |
6710 | ||
6711 | if (n_infiles == added_libraries) | |
6712 | fatal_error ("no input files"); | |
6713 | ||
6714 | if (seen_error ()) | |
6715 | goto out; | |
6716 | ||
6717 | /* Make a place to record the compiler output file names | |
6718 | that correspond to the input files. */ | |
6719 | ||
6720 | i = n_infiles; | |
6721 | i += lang_specific_extra_outfiles; | |
6722 | outfiles = XCNEWVEC (const char *, i); | |
6723 | ||
6724 | /* Record which files were specified explicitly as link input. */ | |
6725 | ||
6726 | explicit_link_files = XCNEWVEC (char, n_infiles); | |
6727 | ||
6728 | combine_inputs = have_o || flag_wpa; | |
6729 | ||
6730 | for (i = 0; (int) i < n_infiles; i++) | |
6731 | { | |
6732 | const char *name = infiles[i].name; | |
6733 | struct compiler *compiler = lookup_compiler (name, | |
6734 | strlen (name), | |
6735 | infiles[i].language); | |
6736 | ||
6737 | if (compiler && !(compiler->combinable)) | |
6738 | combine_inputs = false; | |
6739 | ||
6740 | if (lang_n_infiles > 0 && compiler != input_file_compiler | |
6741 | && infiles[i].language && infiles[i].language[0] != '*') | |
6742 | infiles[i].incompiler = compiler; | |
6743 | else if (compiler) | |
6744 | { | |
6745 | lang_n_infiles++; | |
6746 | input_file_compiler = compiler; | |
6747 | infiles[i].incompiler = compiler; | |
6748 | } | |
6749 | else | |
6750 | { | |
6751 | /* Since there is no compiler for this input file, assume it is a | |
6752 | linker file. */ | |
6753 | explicit_link_files[i] = 1; | |
6754 | infiles[i].incompiler = NULL; | |
6755 | } | |
6756 | infiles[i].compiled = false; | |
6757 | infiles[i].preprocessed = false; | |
6758 | } | |
6759 | ||
6760 | if (!combine_inputs && have_c && have_o && lang_n_infiles > 1) | |
6761 | fatal_error ("cannot specify -o with -c, -S or -E with multiple files"); | |
6762 | ||
6763 | for (i = 0; (int) i < n_infiles; i++) | |
6764 | { | |
6765 | int this_file_error = 0; | |
6766 | ||
6767 | /* Tell do_spec what to substitute for %i. */ | |
6768 | ||
6769 | input_file_number = i; | |
6770 | set_input (infiles[i].name); | |
6771 | ||
6772 | if (infiles[i].compiled) | |
6773 | continue; | |
6774 | ||
6775 | /* Use the same thing in %o, unless cp->spec says otherwise. */ | |
6776 | ||
6777 | outfiles[i] = gcc_input_filename; | |
6778 | ||
6779 | /* Figure out which compiler from the file's suffix. */ | |
6780 | ||
6781 | input_file_compiler | |
6782 | = lookup_compiler (infiles[i].name, input_filename_length, | |
6783 | infiles[i].language); | |
6784 | ||
6785 | if (input_file_compiler) | |
6786 | { | |
6787 | /* Ok, we found an applicable compiler. Run its spec. */ | |
6788 | ||
6789 | if (input_file_compiler->spec[0] == '#') | |
6790 | { | |
6791 | error ("%s: %s compiler not installed on this system", | |
6792 | gcc_input_filename, &input_file_compiler->spec[1]); | |
6793 | this_file_error = 1; | |
6794 | } | |
6795 | else | |
6796 | { | |
6797 | if (compare_debug) | |
6798 | { | |
6799 | free (debug_check_temp_file[0]); | |
6800 | debug_check_temp_file[0] = NULL; | |
6801 | ||
6802 | free (debug_check_temp_file[1]); | |
6803 | debug_check_temp_file[1] = NULL; | |
6804 | } | |
6805 | ||
6806 | value = do_spec (input_file_compiler->spec); | |
6807 | infiles[i].compiled = true; | |
6808 | if (value < 0) | |
6809 | this_file_error = 1; | |
6810 | else if (compare_debug && debug_check_temp_file[0]) | |
6811 | { | |
6812 | if (verbose_flag) | |
6813 | inform (0, "recompiling with -fcompare-debug"); | |
6814 | ||
6815 | compare_debug = -compare_debug; | |
6816 | n_switches = n_switches_debug_check[1]; | |
6817 | n_switches_alloc = n_switches_alloc_debug_check[1]; | |
6818 | switches = switches_debug_check[1]; | |
6819 | ||
6820 | value = do_spec (input_file_compiler->spec); | |
6821 | ||
6822 | compare_debug = -compare_debug; | |
6823 | n_switches = n_switches_debug_check[0]; | |
6824 | n_switches_alloc = n_switches_alloc_debug_check[0]; | |
6825 | switches = switches_debug_check[0]; | |
6826 | ||
6827 | if (value < 0) | |
6828 | { | |
6829 | error ("during -fcompare-debug recompilation"); | |
6830 | this_file_error = 1; | |
6831 | } | |
6832 | ||
6833 | gcc_assert (debug_check_temp_file[1] | |
6834 | && filename_cmp (debug_check_temp_file[0], | |
6835 | debug_check_temp_file[1])); | |
6836 | ||
6837 | if (verbose_flag) | |
6838 | inform (0, "comparing final insns dumps"); | |
6839 | ||
6840 | if (compare_files (debug_check_temp_file)) | |
6841 | this_file_error = 1; | |
6842 | } | |
6843 | ||
6844 | if (compare_debug) | |
6845 | { | |
6846 | free (debug_check_temp_file[0]); | |
6847 | debug_check_temp_file[0] = NULL; | |
6848 | ||
6849 | free (debug_check_temp_file[1]); | |
6850 | debug_check_temp_file[1] = NULL; | |
6851 | } | |
6852 | } | |
6853 | } | |
6854 | ||
6855 | /* If this file's name does not contain a recognized suffix, | |
6856 | record it as explicit linker input. */ | |
6857 | ||
6858 | else | |
6859 | explicit_link_files[i] = 1; | |
6860 | ||
6861 | /* Clear the delete-on-failure queue, deleting the files in it | |
6862 | if this compilation failed. */ | |
6863 | ||
6864 | if (this_file_error) | |
6865 | { | |
6866 | delete_failure_queue (); | |
6867 | errorcount++; | |
6868 | } | |
6869 | /* If this compilation succeeded, don't delete those files later. */ | |
6870 | clear_failure_queue (); | |
6871 | } | |
6872 | ||
6873 | /* Reset the input file name to the first compile/object file name, for use | |
6874 | with %b in LINK_SPEC. We use the first input file that we can find | |
6875 | a compiler to compile it instead of using infiles.language since for | |
6876 | languages other than C we use aliases that we then lookup later. */ | |
6877 | if (n_infiles > 0) | |
6878 | { | |
6879 | int i; | |
6880 | ||
6881 | for (i = 0; i < n_infiles ; i++) | |
6882 | if (infiles[i].incompiler | |
6883 | || (infiles[i].language && infiles[i].language[0] != '*')) | |
6884 | { | |
6885 | set_input (infiles[i].name); | |
6886 | break; | |
6887 | } | |
6888 | } | |
6889 | ||
6890 | if (!seen_error ()) | |
6891 | { | |
6892 | /* Make sure INPUT_FILE_NUMBER points to first available open | |
6893 | slot. */ | |
6894 | input_file_number = n_infiles; | |
6895 | if (lang_specific_pre_link ()) | |
6896 | errorcount++; | |
6897 | } | |
6898 | ||
6899 | /* Determine if there are any linker input files. */ | |
6900 | num_linker_inputs = 0; | |
6901 | for (i = 0; (int) i < n_infiles; i++) | |
6902 | if (explicit_link_files[i] || outfiles[i] != NULL) | |
6903 | num_linker_inputs++; | |
6904 | ||
6905 | /* Run ld to link all the compiler output files. */ | |
6906 | ||
6907 | if (num_linker_inputs > 0 && !seen_error () && print_subprocess_help < 2) | |
6908 | { | |
6909 | int tmp = execution_count; | |
6910 | ||
6911 | if (! have_c) | |
6912 | { | |
6913 | #if HAVE_LTO_PLUGIN > 0 | |
6914 | #if HAVE_LTO_PLUGIN == 2 | |
6915 | const char *fno_use_linker_plugin = "fno-use-linker-plugin"; | |
6916 | #else | |
6917 | const char *fuse_linker_plugin = "fuse-linker-plugin"; | |
6918 | #endif | |
6919 | #endif | |
6920 | ||
6921 | /* We'll use ld if we can't find collect2. */ | |
6922 | if (! strcmp (linker_name_spec, "collect2")) | |
6923 | { | |
6924 | char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false); | |
6925 | if (s == NULL) | |
6926 | linker_name_spec = "ld"; | |
6927 | } | |
6928 | ||
6929 | #if HAVE_LTO_PLUGIN > 0 | |
6930 | #if HAVE_LTO_PLUGIN == 2 | |
6931 | if (!switch_matches (fno_use_linker_plugin, | |
6932 | fno_use_linker_plugin | |
6933 | + strlen (fno_use_linker_plugin), 0)) | |
6934 | #else | |
6935 | if (switch_matches (fuse_linker_plugin, | |
6936 | fuse_linker_plugin | |
6937 | + strlen (fuse_linker_plugin), 0)) | |
6938 | #endif | |
6939 | { | |
5ce9237c JM |
6940 | char *temp_spec = find_a_file (&exec_prefixes, |
6941 | LTOPLUGINSONAME, R_OK, | |
6942 | false); | |
6943 | if (!temp_spec) | |
e4b17023 JM |
6944 | fatal_error ("-fuse-linker-plugin, but %s not found", |
6945 | LTOPLUGINSONAME); | |
5ce9237c | 6946 | linker_plugin_file_spec = convert_white_space (temp_spec); |
e4b17023 JM |
6947 | } |
6948 | #endif | |
6949 | lto_gcc_spec = argv[0]; | |
6950 | } | |
6951 | ||
6952 | /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables | |
6953 | for collect. */ | |
6954 | putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false); | |
6955 | putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true); | |
6956 | ||
6957 | if (print_subprocess_help == 1) | |
6958 | { | |
6959 | printf (_("\nLinker options\n==============\n\n")); | |
6960 | printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\"" | |
6961 | " to the linker.\n\n")); | |
6962 | fflush (stdout); | |
6963 | } | |
6964 | value = do_spec (link_command_spec); | |
6965 | if (value < 0) | |
6966 | errorcount = 1; | |
6967 | linker_was_run = (tmp != execution_count); | |
6968 | } | |
6969 | ||
6970 | /* If options said don't run linker, | |
6971 | complain about input files to be given to the linker. */ | |
6972 | ||
6973 | if (! linker_was_run && !seen_error ()) | |
6974 | for (i = 0; (int) i < n_infiles; i++) | |
6975 | if (explicit_link_files[i] | |
6976 | && !(infiles[i].language && infiles[i].language[0] == '*')) | |
6977 | warning (0, "%s: linker input file unused because linking not done", | |
6978 | outfiles[i]); | |
6979 | ||
6980 | /* Delete some or all of the temporary files we made. */ | |
6981 | ||
6982 | if (seen_error ()) | |
6983 | delete_failure_queue (); | |
6984 | delete_temp_files (); | |
6985 | ||
6986 | if (print_help_list) | |
6987 | { | |
6988 | printf (("\nFor bug reporting instructions, please see:\n")); | |
6989 | printf ("%s\n", bug_report_url); | |
6990 | } | |
6991 | ||
6992 | out: | |
6993 | return (signal_count != 0 ? 2 | |
6994 | : seen_error () ? (pass_exit_codes ? greatest_status : 1) | |
6995 | : 0); | |
6996 | } | |
6997 | ||
6998 | /* Find the proper compilation spec for the file name NAME, | |
6999 | whose length is LENGTH. LANGUAGE is the specified language, | |
7000 | or 0 if this file is to be passed to the linker. */ | |
7001 | ||
7002 | static struct compiler * | |
7003 | lookup_compiler (const char *name, size_t length, const char *language) | |
7004 | { | |
7005 | struct compiler *cp; | |
7006 | ||
7007 | /* If this was specified by the user to be a linker input, indicate that. */ | |
7008 | if (language != 0 && language[0] == '*') | |
7009 | return 0; | |
7010 | ||
7011 | /* Otherwise, look for the language, if one is spec'd. */ | |
7012 | if (language != 0) | |
7013 | { | |
7014 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
7015 | if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language)) | |
7016 | return cp; | |
7017 | ||
7018 | error ("language %s not recognized", language); | |
7019 | return 0; | |
7020 | } | |
7021 | ||
7022 | /* Look for a suffix. */ | |
7023 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
7024 | { | |
7025 | if (/* The suffix `-' matches only the file name `-'. */ | |
7026 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
7027 | || (strlen (cp->suffix) < length | |
7028 | /* See if the suffix matches the end of NAME. */ | |
7029 | && !strcmp (cp->suffix, | |
7030 | name + length - strlen (cp->suffix)) | |
7031 | )) | |
7032 | break; | |
7033 | } | |
7034 | ||
7035 | #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM) | |
7036 | /* Look again, but case-insensitively this time. */ | |
7037 | if (cp < compilers) | |
7038 | for (cp = compilers + n_compilers - 1; cp >= compilers; cp--) | |
7039 | { | |
7040 | if (/* The suffix `-' matches only the file name `-'. */ | |
7041 | (!strcmp (cp->suffix, "-") && !strcmp (name, "-")) | |
7042 | || (strlen (cp->suffix) < length | |
7043 | /* See if the suffix matches the end of NAME. */ | |
7044 | && ((!strcmp (cp->suffix, | |
7045 | name + length - strlen (cp->suffix)) | |
7046 | || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")) | |
7047 | && !strcasecmp (cp->suffix, | |
7048 | name + length - strlen (cp->suffix))) | |
7049 | )) | |
7050 | break; | |
7051 | } | |
7052 | #endif | |
7053 | ||
7054 | if (cp >= compilers) | |
7055 | { | |
7056 | if (cp->spec[0] != '@') | |
7057 | /* A non-alias entry: return it. */ | |
7058 | return cp; | |
7059 | ||
7060 | /* An alias entry maps a suffix to a language. | |
7061 | Search for the language; pass 0 for NAME and LENGTH | |
7062 | to avoid infinite recursion if language not found. */ | |
7063 | return lookup_compiler (NULL, 0, cp->spec + 1); | |
7064 | } | |
7065 | return 0; | |
7066 | } | |
7067 | \f | |
7068 | static char * | |
7069 | save_string (const char *s, int len) | |
7070 | { | |
7071 | char *result = XNEWVEC (char, len + 1); | |
7072 | ||
7073 | memcpy (result, s, len); | |
7074 | result[len] = 0; | |
7075 | return result; | |
7076 | } | |
7077 | ||
7078 | void | |
7079 | pfatal_with_name (const char *name) | |
7080 | { | |
7081 | perror_with_name (name); | |
7082 | delete_temp_files (); | |
7083 | exit (1); | |
7084 | } | |
7085 | ||
7086 | static void | |
7087 | perror_with_name (const char *name) | |
7088 | { | |
7089 | error ("%s: %m", name); | |
7090 | } | |
7091 | \f | |
7092 | static inline void | |
7093 | validate_switches_from_spec (const char *spec) | |
7094 | { | |
7095 | const char *p = spec; | |
7096 | char c; | |
7097 | while ((c = *p++)) | |
7098 | if (c == '%' && (*p == '{' || *p == '<' || (*p == 'W' && *++p == '{'))) | |
7099 | /* We have a switch spec. */ | |
7100 | p = validate_switches (p + 1); | |
7101 | } | |
7102 | ||
7103 | static void | |
7104 | validate_all_switches (void) | |
7105 | { | |
7106 | struct compiler *comp; | |
7107 | struct spec_list *spec; | |
7108 | ||
7109 | for (comp = compilers; comp->spec; comp++) | |
7110 | validate_switches_from_spec (comp->spec); | |
7111 | ||
7112 | /* Look through the linked list of specs read from the specs file. */ | |
7113 | for (spec = specs; spec; spec = spec->next) | |
7114 | validate_switches_from_spec (*spec->ptr_spec); | |
7115 | ||
7116 | validate_switches_from_spec (link_command_spec); | |
7117 | } | |
7118 | ||
7119 | /* Look at the switch-name that comes after START | |
7120 | and mark as valid all supplied switches that match it. */ | |
7121 | ||
7122 | static const char * | |
7123 | validate_switches (const char *start) | |
7124 | { | |
7125 | const char *p = start; | |
7126 | const char *atom; | |
7127 | size_t len; | |
7128 | int i; | |
7129 | bool suffix = false; | |
7130 | bool starred = false; | |
7131 | ||
7132 | #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0) | |
7133 | ||
7134 | next_member: | |
7135 | SKIP_WHITE (); | |
7136 | ||
7137 | if (*p == '!') | |
7138 | p++; | |
7139 | ||
7140 | SKIP_WHITE (); | |
7141 | if (*p == '.' || *p == ',') | |
7142 | suffix = true, p++; | |
7143 | ||
7144 | atom = p; | |
7145 | while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '=' | |
7146 | || *p == ',' || *p == '.' || *p == '@') | |
7147 | p++; | |
7148 | len = p - atom; | |
7149 | ||
7150 | if (*p == '*') | |
7151 | starred = true, p++; | |
7152 | ||
7153 | SKIP_WHITE (); | |
7154 | ||
7155 | if (!suffix) | |
7156 | { | |
7157 | /* Mark all matching switches as valid. */ | |
7158 | for (i = 0; i < n_switches; i++) | |
7159 | if (!strncmp (switches[i].part1, atom, len) | |
7160 | && (starred || switches[i].part1[len] == 0)) | |
7161 | switches[i].validated = 1; | |
7162 | } | |
7163 | ||
7164 | if (*p) p++; | |
7165 | if (*p && (p[-1] == '|' || p[-1] == '&')) | |
7166 | goto next_member; | |
7167 | ||
7168 | if (*p && p[-1] == ':') | |
7169 | { | |
7170 | while (*p && *p != ';' && *p != '}') | |
7171 | { | |
7172 | if (*p == '%') | |
7173 | { | |
7174 | p++; | |
7175 | if (*p == '{' || *p == '<') | |
7176 | p = validate_switches (p+1); | |
7177 | else if (p[0] == 'W' && p[1] == '{') | |
7178 | p = validate_switches (p+2); | |
7179 | } | |
7180 | else | |
7181 | p++; | |
7182 | } | |
7183 | ||
7184 | if (*p) p++; | |
7185 | if (*p && p[-1] == ';') | |
7186 | goto next_member; | |
7187 | } | |
7188 | ||
7189 | return p; | |
7190 | #undef SKIP_WHITE | |
7191 | } | |
7192 | \f | |
7193 | struct mdswitchstr | |
7194 | { | |
7195 | const char *str; | |
7196 | int len; | |
7197 | }; | |
7198 | ||
7199 | static struct mdswitchstr *mdswitches; | |
7200 | static int n_mdswitches; | |
7201 | ||
7202 | /* Check whether a particular argument was used. The first time we | |
7203 | canonicalize the switches to keep only the ones we care about. */ | |
7204 | ||
7205 | static int | |
7206 | used_arg (const char *p, int len) | |
7207 | { | |
7208 | struct mswitchstr | |
7209 | { | |
7210 | const char *str; | |
7211 | const char *replace; | |
7212 | int len; | |
7213 | int rep_len; | |
7214 | }; | |
7215 | ||
7216 | static struct mswitchstr *mswitches; | |
7217 | static int n_mswitches; | |
7218 | int i, j; | |
7219 | ||
7220 | if (!mswitches) | |
7221 | { | |
7222 | struct mswitchstr *matches; | |
7223 | const char *q; | |
7224 | int cnt = 0; | |
7225 | ||
7226 | /* Break multilib_matches into the component strings of string | |
7227 | and replacement string. */ | |
7228 | for (q = multilib_matches; *q != '\0'; q++) | |
7229 | if (*q == ';') | |
7230 | cnt++; | |
7231 | ||
7232 | matches | |
7233 | = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt); | |
7234 | i = 0; | |
7235 | q = multilib_matches; | |
7236 | while (*q != '\0') | |
7237 | { | |
7238 | matches[i].str = q; | |
7239 | while (*q != ' ') | |
7240 | { | |
7241 | if (*q == '\0') | |
7242 | { | |
7243 | invalid_matches: | |
7244 | fatal_error ("multilib spec %qs is invalid", | |
7245 | multilib_matches); | |
7246 | } | |
7247 | q++; | |
7248 | } | |
7249 | matches[i].len = q - matches[i].str; | |
7250 | ||
7251 | matches[i].replace = ++q; | |
7252 | while (*q != ';' && *q != '\0') | |
7253 | { | |
7254 | if (*q == ' ') | |
7255 | goto invalid_matches; | |
7256 | q++; | |
7257 | } | |
7258 | matches[i].rep_len = q - matches[i].replace; | |
7259 | i++; | |
7260 | if (*q == ';') | |
7261 | q++; | |
7262 | } | |
7263 | ||
7264 | /* Now build a list of the replacement string for switches that we care | |
7265 | about. Make sure we allocate at least one entry. This prevents | |
7266 | xmalloc from calling fatal, and prevents us from re-executing this | |
7267 | block of code. */ | |
7268 | mswitches | |
7269 | = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1)); | |
7270 | for (i = 0; i < n_switches; i++) | |
7271 | if ((switches[i].live_cond & SWITCH_IGNORE) == 0) | |
7272 | { | |
7273 | int xlen = strlen (switches[i].part1); | |
7274 | for (j = 0; j < cnt; j++) | |
7275 | if (xlen == matches[j].len | |
7276 | && ! strncmp (switches[i].part1, matches[j].str, xlen)) | |
7277 | { | |
7278 | mswitches[n_mswitches].str = matches[j].replace; | |
7279 | mswitches[n_mswitches].len = matches[j].rep_len; | |
7280 | mswitches[n_mswitches].replace = (char *) 0; | |
7281 | mswitches[n_mswitches].rep_len = 0; | |
7282 | n_mswitches++; | |
7283 | break; | |
7284 | } | |
7285 | } | |
7286 | ||
7287 | /* Add MULTILIB_DEFAULTS switches too, as long as they were not present | |
7288 | on the command line nor any options mutually incompatible with | |
7289 | them. */ | |
7290 | for (i = 0; i < n_mdswitches; i++) | |
7291 | { | |
7292 | const char *r; | |
7293 | ||
7294 | for (q = multilib_options; *q != '\0'; q++) | |
7295 | { | |
7296 | while (*q == ' ') | |
7297 | q++; | |
7298 | ||
7299 | r = q; | |
7300 | while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0 | |
7301 | || strchr (" /", q[mdswitches[i].len]) == NULL) | |
7302 | { | |
7303 | while (*q != ' ' && *q != '/' && *q != '\0') | |
7304 | q++; | |
7305 | if (*q != '/') | |
7306 | break; | |
7307 | q++; | |
7308 | } | |
7309 | ||
7310 | if (*q != ' ' && *q != '\0') | |
7311 | { | |
7312 | while (*r != ' ' && *r != '\0') | |
7313 | { | |
7314 | q = r; | |
7315 | while (*q != ' ' && *q != '/' && *q != '\0') | |
7316 | q++; | |
7317 | ||
7318 | if (used_arg (r, q - r)) | |
7319 | break; | |
7320 | ||
7321 | if (*q != '/') | |
7322 | { | |
7323 | mswitches[n_mswitches].str = mdswitches[i].str; | |
7324 | mswitches[n_mswitches].len = mdswitches[i].len; | |
7325 | mswitches[n_mswitches].replace = (char *) 0; | |
7326 | mswitches[n_mswitches].rep_len = 0; | |
7327 | n_mswitches++; | |
7328 | break; | |
7329 | } | |
7330 | ||
7331 | r = q + 1; | |
7332 | } | |
7333 | break; | |
7334 | } | |
7335 | } | |
7336 | } | |
7337 | } | |
7338 | ||
7339 | for (i = 0; i < n_mswitches; i++) | |
7340 | if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len)) | |
7341 | return 1; | |
7342 | ||
7343 | return 0; | |
7344 | } | |
7345 | ||
7346 | static int | |
7347 | default_arg (const char *p, int len) | |
7348 | { | |
7349 | int i; | |
7350 | ||
7351 | for (i = 0; i < n_mdswitches; i++) | |
7352 | if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len)) | |
7353 | return 1; | |
7354 | ||
7355 | return 0; | |
7356 | } | |
7357 | ||
7358 | /* Work out the subdirectory to use based on the options. The format of | |
7359 | multilib_select is a list of elements. Each element is a subdirectory | |
7360 | name followed by a list of options followed by a semicolon. The format | |
7361 | of multilib_exclusions is the same, but without the preceding | |
7362 | directory. First gcc will check the exclusions, if none of the options | |
7363 | beginning with an exclamation point are present, and all of the other | |
7364 | options are present, then we will ignore this completely. Passing | |
7365 | that, gcc will consider each multilib_select in turn using the same | |
7366 | rules for matching the options. If a match is found, that subdirectory | |
5ce9237c JM |
7367 | will be used. |
7368 | A subdirectory name is optionally followed by a colon and the corresponding | |
7369 | multiarch name. */ | |
e4b17023 JM |
7370 | |
7371 | static void | |
7372 | set_multilib_dir (void) | |
7373 | { | |
7374 | const char *p; | |
7375 | unsigned int this_path_len; | |
7376 | const char *this_path, *this_arg; | |
7377 | const char *start, *end; | |
7378 | int not_arg; | |
7379 | int ok, ndfltok, first; | |
7380 | ||
7381 | n_mdswitches = 0; | |
7382 | start = multilib_defaults; | |
7383 | while (*start == ' ' || *start == '\t') | |
7384 | start++; | |
7385 | while (*start != '\0') | |
7386 | { | |
7387 | n_mdswitches++; | |
7388 | while (*start != ' ' && *start != '\t' && *start != '\0') | |
7389 | start++; | |
7390 | while (*start == ' ' || *start == '\t') | |
7391 | start++; | |
7392 | } | |
7393 | ||
7394 | if (n_mdswitches) | |
7395 | { | |
7396 | int i = 0; | |
7397 | ||
7398 | mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches); | |
7399 | for (start = multilib_defaults; *start != '\0'; start = end + 1) | |
7400 | { | |
7401 | while (*start == ' ' || *start == '\t') | |
7402 | start++; | |
7403 | ||
7404 | if (*start == '\0') | |
7405 | break; | |
7406 | ||
7407 | for (end = start + 1; | |
7408 | *end != ' ' && *end != '\t' && *end != '\0'; end++) | |
7409 | ; | |
7410 | ||
7411 | obstack_grow (&multilib_obstack, start, end - start); | |
7412 | obstack_1grow (&multilib_obstack, 0); | |
7413 | mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *); | |
7414 | mdswitches[i++].len = end - start; | |
7415 | ||
7416 | if (*end == '\0') | |
7417 | break; | |
7418 | } | |
7419 | } | |
7420 | ||
7421 | p = multilib_exclusions; | |
7422 | while (*p != '\0') | |
7423 | { | |
7424 | /* Ignore newlines. */ | |
7425 | if (*p == '\n') | |
7426 | { | |
7427 | ++p; | |
7428 | continue; | |
7429 | } | |
7430 | ||
7431 | /* Check the arguments. */ | |
7432 | ok = 1; | |
7433 | while (*p != ';') | |
7434 | { | |
7435 | if (*p == '\0') | |
7436 | { | |
7437 | invalid_exclusions: | |
7438 | fatal_error ("multilib exclusions %qs is invalid", | |
7439 | multilib_exclusions); | |
7440 | } | |
7441 | ||
7442 | if (! ok) | |
7443 | { | |
7444 | ++p; | |
7445 | continue; | |
7446 | } | |
7447 | ||
7448 | this_arg = p; | |
7449 | while (*p != ' ' && *p != ';') | |
7450 | { | |
7451 | if (*p == '\0') | |
7452 | goto invalid_exclusions; | |
7453 | ++p; | |
7454 | } | |
7455 | ||
7456 | if (*this_arg != '!') | |
7457 | not_arg = 0; | |
7458 | else | |
7459 | { | |
7460 | not_arg = 1; | |
7461 | ++this_arg; | |
7462 | } | |
7463 | ||
7464 | ok = used_arg (this_arg, p - this_arg); | |
7465 | if (not_arg) | |
7466 | ok = ! ok; | |
7467 | ||
7468 | if (*p == ' ') | |
7469 | ++p; | |
7470 | } | |
7471 | ||
7472 | if (ok) | |
7473 | return; | |
7474 | ||
7475 | ++p; | |
7476 | } | |
7477 | ||
7478 | first = 1; | |
7479 | p = multilib_select; | |
7480 | while (*p != '\0') | |
7481 | { | |
7482 | /* Ignore newlines. */ | |
7483 | if (*p == '\n') | |
7484 | { | |
7485 | ++p; | |
7486 | continue; | |
7487 | } | |
7488 | ||
7489 | /* Get the initial path. */ | |
7490 | this_path = p; | |
7491 | while (*p != ' ') | |
7492 | { | |
7493 | if (*p == '\0') | |
7494 | { | |
7495 | invalid_select: | |
7496 | fatal_error ("multilib select %qs is invalid", | |
7497 | multilib_select); | |
7498 | } | |
7499 | ++p; | |
7500 | } | |
7501 | this_path_len = p - this_path; | |
7502 | ||
7503 | /* Check the arguments. */ | |
7504 | ok = 1; | |
7505 | ndfltok = 1; | |
7506 | ++p; | |
7507 | while (*p != ';') | |
7508 | { | |
7509 | if (*p == '\0') | |
7510 | goto invalid_select; | |
7511 | ||
7512 | if (! ok) | |
7513 | { | |
7514 | ++p; | |
7515 | continue; | |
7516 | } | |
7517 | ||
7518 | this_arg = p; | |
7519 | while (*p != ' ' && *p != ';') | |
7520 | { | |
7521 | if (*p == '\0') | |
7522 | goto invalid_select; | |
7523 | ++p; | |
7524 | } | |
7525 | ||
7526 | if (*this_arg != '!') | |
7527 | not_arg = 0; | |
7528 | else | |
7529 | { | |
7530 | not_arg = 1; | |
7531 | ++this_arg; | |
7532 | } | |
7533 | ||
7534 | /* If this is a default argument, we can just ignore it. | |
7535 | This is true even if this_arg begins with '!'. Beginning | |
7536 | with '!' does not mean that this argument is necessarily | |
7537 | inappropriate for this library: it merely means that | |
7538 | there is a more specific library which uses this | |
7539 | argument. If this argument is a default, we need not | |
7540 | consider that more specific library. */ | |
7541 | ok = used_arg (this_arg, p - this_arg); | |
7542 | if (not_arg) | |
7543 | ok = ! ok; | |
7544 | ||
7545 | if (! ok) | |
7546 | ndfltok = 0; | |
7547 | ||
7548 | if (default_arg (this_arg, p - this_arg)) | |
7549 | ok = 1; | |
7550 | ||
7551 | if (*p == ' ') | |
7552 | ++p; | |
7553 | } | |
7554 | ||
7555 | if (ok && first) | |
7556 | { | |
7557 | if (this_path_len != 1 | |
7558 | || this_path[0] != '.') | |
7559 | { | |
7560 | char *new_multilib_dir = XNEWVEC (char, this_path_len + 1); | |
7561 | char *q; | |
7562 | ||
7563 | strncpy (new_multilib_dir, this_path, this_path_len); | |
7564 | new_multilib_dir[this_path_len] = '\0'; | |
7565 | q = strchr (new_multilib_dir, ':'); | |
7566 | if (q != NULL) | |
7567 | *q = '\0'; | |
7568 | multilib_dir = new_multilib_dir; | |
7569 | } | |
7570 | first = 0; | |
7571 | } | |
7572 | ||
7573 | if (ndfltok) | |
7574 | { | |
7575 | const char *q = this_path, *end = this_path + this_path_len; | |
7576 | ||
7577 | while (q < end && *q != ':') | |
7578 | q++; | |
7579 | if (q < end) | |
7580 | { | |
5ce9237c JM |
7581 | const char *q2 = q + 1, *ml_end = end; |
7582 | char *new_multilib_os_dir; | |
7583 | ||
7584 | while (q2 < end && *q2 != ':') | |
7585 | q2++; | |
7586 | if (*q2 == ':') | |
7587 | ml_end = q2; | |
7588 | new_multilib_os_dir = XNEWVEC (char, ml_end - q); | |
7589 | memcpy (new_multilib_os_dir, q + 1, ml_end - q - 1); | |
7590 | new_multilib_os_dir[ml_end - q - 1] = '\0'; | |
7591 | multilib_os_dir = *new_multilib_os_dir ? new_multilib_os_dir : "."; | |
7592 | ||
7593 | if (q2 < end && *q2 == ':') | |
7594 | { | |
7595 | char *new_multiarch_dir = XNEWVEC (char, end - q2); | |
7596 | memcpy (new_multiarch_dir, q2 + 1, end - q2 - 1); | |
7597 | new_multiarch_dir[end - q2 - 1] = '\0'; | |
7598 | multiarch_dir = new_multiarch_dir; | |
7599 | } | |
e4b17023 JM |
7600 | break; |
7601 | } | |
7602 | } | |
7603 | ||
7604 | ++p; | |
7605 | } | |
7606 | ||
7607 | if (multilib_dir == NULL && multilib_os_dir != NULL | |
7608 | && strcmp (multilib_os_dir, ".") == 0) | |
7609 | { | |
7610 | free (CONST_CAST (char *, multilib_os_dir)); | |
7611 | multilib_os_dir = NULL; | |
7612 | } | |
7613 | else if (multilib_dir != NULL && multilib_os_dir == NULL) | |
7614 | multilib_os_dir = multilib_dir; | |
7615 | } | |
7616 | ||
7617 | /* Print out the multiple library subdirectory selection | |
7618 | information. This prints out a series of lines. Each line looks | |
7619 | like SUBDIRECTORY;@OPTION@OPTION, with as many options as is | |
7620 | required. Only the desired options are printed out, the negative | |
7621 | matches. The options are print without a leading dash. There are | |
7622 | no spaces to make it easy to use the information in the shell. | |
7623 | Each subdirectory is printed only once. This assumes the ordering | |
7624 | generated by the genmultilib script. Also, we leave out ones that match | |
7625 | the exclusions. */ | |
7626 | ||
7627 | static void | |
7628 | print_multilib_info (void) | |
7629 | { | |
7630 | const char *p = multilib_select; | |
7631 | const char *last_path = 0, *this_path; | |
7632 | int skip; | |
7633 | unsigned int last_path_len = 0; | |
7634 | ||
7635 | while (*p != '\0') | |
7636 | { | |
7637 | skip = 0; | |
7638 | /* Ignore newlines. */ | |
7639 | if (*p == '\n') | |
7640 | { | |
7641 | ++p; | |
7642 | continue; | |
7643 | } | |
7644 | ||
7645 | /* Get the initial path. */ | |
7646 | this_path = p; | |
7647 | while (*p != ' ') | |
7648 | { | |
7649 | if (*p == '\0') | |
7650 | { | |
7651 | invalid_select: | |
7652 | fatal_error ("multilib select %qs is invalid", multilib_select); | |
7653 | } | |
7654 | ||
7655 | ++p; | |
7656 | } | |
7657 | ||
7658 | /* When --disable-multilib was used but target defines | |
5ce9237c JM |
7659 | MULTILIB_OSDIRNAMES, entries starting with .: (and not starting |
7660 | with .:: for multiarch configurations) are there just to find | |
7661 | multilib_os_dir, so skip them from output. */ | |
7662 | if (this_path[0] == '.' && this_path[1] == ':' && this_path[2] != ':') | |
e4b17023 JM |
7663 | skip = 1; |
7664 | ||
7665 | /* Check for matches with the multilib_exclusions. We don't bother | |
7666 | with the '!' in either list. If any of the exclusion rules match | |
7667 | all of its options with the select rule, we skip it. */ | |
7668 | { | |
7669 | const char *e = multilib_exclusions; | |
7670 | const char *this_arg; | |
7671 | ||
7672 | while (*e != '\0') | |
7673 | { | |
7674 | int m = 1; | |
7675 | /* Ignore newlines. */ | |
7676 | if (*e == '\n') | |
7677 | { | |
7678 | ++e; | |
7679 | continue; | |
7680 | } | |
7681 | ||
7682 | /* Check the arguments. */ | |
7683 | while (*e != ';') | |
7684 | { | |
7685 | const char *q; | |
7686 | int mp = 0; | |
7687 | ||
7688 | if (*e == '\0') | |
7689 | { | |
7690 | invalid_exclusion: | |
7691 | fatal_error ("multilib exclusion %qs is invalid", | |
7692 | multilib_exclusions); | |
7693 | } | |
7694 | ||
7695 | if (! m) | |
7696 | { | |
7697 | ++e; | |
7698 | continue; | |
7699 | } | |
7700 | ||
7701 | this_arg = e; | |
7702 | ||
7703 | while (*e != ' ' && *e != ';') | |
7704 | { | |
7705 | if (*e == '\0') | |
7706 | goto invalid_exclusion; | |
7707 | ++e; | |
7708 | } | |
7709 | ||
7710 | q = p + 1; | |
7711 | while (*q != ';') | |
7712 | { | |
7713 | const char *arg; | |
7714 | int len = e - this_arg; | |
7715 | ||
7716 | if (*q == '\0') | |
7717 | goto invalid_select; | |
7718 | ||
7719 | arg = q; | |
7720 | ||
7721 | while (*q != ' ' && *q != ';') | |
7722 | { | |
7723 | if (*q == '\0') | |
7724 | goto invalid_select; | |
7725 | ++q; | |
7726 | } | |
7727 | ||
7728 | if (! strncmp (arg, this_arg, | |
7729 | (len < q - arg) ? q - arg : len) | |
7730 | || default_arg (this_arg, e - this_arg)) | |
7731 | { | |
7732 | mp = 1; | |
7733 | break; | |
7734 | } | |
7735 | ||
7736 | if (*q == ' ') | |
7737 | ++q; | |
7738 | } | |
7739 | ||
7740 | if (! mp) | |
7741 | m = 0; | |
7742 | ||
7743 | if (*e == ' ') | |
7744 | ++e; | |
7745 | } | |
7746 | ||
7747 | if (m) | |
7748 | { | |
7749 | skip = 1; | |
7750 | break; | |
7751 | } | |
7752 | ||
7753 | if (*e != '\0') | |
7754 | ++e; | |
7755 | } | |
7756 | } | |
7757 | ||
7758 | if (! skip) | |
7759 | { | |
7760 | /* If this is a duplicate, skip it. */ | |
7761 | skip = (last_path != 0 | |
7762 | && (unsigned int) (p - this_path) == last_path_len | |
7763 | && ! filename_ncmp (last_path, this_path, last_path_len)); | |
7764 | ||
7765 | last_path = this_path; | |
7766 | last_path_len = p - this_path; | |
7767 | } | |
7768 | ||
7769 | /* If this directory requires any default arguments, we can skip | |
7770 | it. We will already have printed a directory identical to | |
7771 | this one which does not require that default argument. */ | |
7772 | if (! skip) | |
7773 | { | |
7774 | const char *q; | |
7775 | ||
7776 | q = p + 1; | |
7777 | while (*q != ';') | |
7778 | { | |
7779 | const char *arg; | |
7780 | ||
7781 | if (*q == '\0') | |
7782 | goto invalid_select; | |
7783 | ||
7784 | if (*q == '!') | |
7785 | arg = NULL; | |
7786 | else | |
7787 | arg = q; | |
7788 | ||
7789 | while (*q != ' ' && *q != ';') | |
7790 | { | |
7791 | if (*q == '\0') | |
7792 | goto invalid_select; | |
7793 | ++q; | |
7794 | } | |
7795 | ||
7796 | if (arg != NULL | |
7797 | && default_arg (arg, q - arg)) | |
7798 | { | |
7799 | skip = 1; | |
7800 | break; | |
7801 | } | |
7802 | ||
7803 | if (*q == ' ') | |
7804 | ++q; | |
7805 | } | |
7806 | } | |
7807 | ||
7808 | if (! skip) | |
7809 | { | |
7810 | const char *p1; | |
7811 | ||
7812 | for (p1 = last_path; p1 < p && *p1 != ':'; p1++) | |
7813 | putchar (*p1); | |
7814 | putchar (';'); | |
7815 | } | |
7816 | ||
7817 | ++p; | |
7818 | while (*p != ';') | |
7819 | { | |
7820 | int use_arg; | |
7821 | ||
7822 | if (*p == '\0') | |
7823 | goto invalid_select; | |
7824 | ||
7825 | if (skip) | |
7826 | { | |
7827 | ++p; | |
7828 | continue; | |
7829 | } | |
7830 | ||
7831 | use_arg = *p != '!'; | |
7832 | ||
7833 | if (use_arg) | |
7834 | putchar ('@'); | |
7835 | ||
7836 | while (*p != ' ' && *p != ';') | |
7837 | { | |
7838 | if (*p == '\0') | |
7839 | goto invalid_select; | |
7840 | if (use_arg) | |
7841 | putchar (*p); | |
7842 | ++p; | |
7843 | } | |
7844 | ||
7845 | if (*p == ' ') | |
7846 | ++p; | |
7847 | } | |
7848 | ||
7849 | if (! skip) | |
7850 | { | |
7851 | /* If there are extra options, print them now. */ | |
7852 | if (multilib_extra && *multilib_extra) | |
7853 | { | |
7854 | int print_at = TRUE; | |
7855 | const char *q; | |
7856 | ||
7857 | for (q = multilib_extra; *q != '\0'; q++) | |
7858 | { | |
7859 | if (*q == ' ') | |
7860 | print_at = TRUE; | |
7861 | else | |
7862 | { | |
7863 | if (print_at) | |
7864 | putchar ('@'); | |
7865 | putchar (*q); | |
7866 | print_at = FALSE; | |
7867 | } | |
7868 | } | |
7869 | } | |
7870 | ||
7871 | putchar ('\n'); | |
7872 | } | |
7873 | ||
7874 | ++p; | |
7875 | } | |
7876 | } | |
7877 | \f | |
7878 | /* getenv built-in spec function. | |
7879 | ||
7880 | Returns the value of the environment variable given by its first | |
7881 | argument, concatenated with the second argument. If the | |
7882 | environment variable is not defined, a fatal error is issued. */ | |
7883 | ||
7884 | static const char * | |
7885 | getenv_spec_function (int argc, const char **argv) | |
7886 | { | |
7887 | char *value; | |
7888 | char *result; | |
7889 | char *ptr; | |
7890 | size_t len; | |
7891 | ||
7892 | if (argc != 2) | |
7893 | return NULL; | |
7894 | ||
7895 | value = getenv (argv[0]); | |
7896 | if (!value) | |
7897 | fatal_error ("environment variable %qs not defined", argv[0]); | |
7898 | ||
7899 | /* We have to escape every character of the environment variable so | |
7900 | they are not interpreted as active spec characters. A | |
7901 | particularly painful case is when we are reading a variable | |
7902 | holding a windows path complete with \ separators. */ | |
7903 | len = strlen (value) * 2 + strlen (argv[1]) + 1; | |
7904 | result = XNEWVAR (char, len); | |
7905 | for (ptr = result; *value; ptr += 2) | |
7906 | { | |
7907 | ptr[0] = '\\'; | |
7908 | ptr[1] = *value++; | |
7909 | } | |
7910 | ||
7911 | strcpy (ptr, argv[1]); | |
7912 | ||
7913 | return result; | |
7914 | } | |
7915 | ||
7916 | /* if-exists built-in spec function. | |
7917 | ||
7918 | Checks to see if the file specified by the absolute pathname in | |
7919 | ARGS exists. Returns that pathname if found. | |
7920 | ||
7921 | The usual use for this function is to check for a library file | |
7922 | (whose name has been expanded with %s). */ | |
7923 | ||
7924 | static const char * | |
7925 | if_exists_spec_function (int argc, const char **argv) | |
7926 | { | |
7927 | /* Must have only one argument. */ | |
7928 | if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK)) | |
7929 | return argv[0]; | |
7930 | ||
7931 | return NULL; | |
7932 | } | |
7933 | ||
7934 | /* if-exists-else built-in spec function. | |
7935 | ||
7936 | This is like if-exists, but takes an additional argument which | |
7937 | is returned if the first argument does not exist. */ | |
7938 | ||
7939 | static const char * | |
7940 | if_exists_else_spec_function (int argc, const char **argv) | |
7941 | { | |
7942 | /* Must have exactly two arguments. */ | |
7943 | if (argc != 2) | |
7944 | return NULL; | |
7945 | ||
7946 | if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK)) | |
7947 | return argv[0]; | |
7948 | ||
7949 | return argv[1]; | |
7950 | } | |
7951 | ||
7952 | /* replace-outfile built-in spec function. | |
7953 | ||
7954 | This looks for the first argument in the outfiles array's name and | |
7955 | replaces it with the second argument. */ | |
7956 | ||
7957 | static const char * | |
7958 | replace_outfile_spec_function (int argc, const char **argv) | |
7959 | { | |
7960 | int i; | |
7961 | /* Must have exactly two arguments. */ | |
7962 | if (argc != 2) | |
7963 | abort (); | |
7964 | ||
7965 | for (i = 0; i < n_infiles; i++) | |
7966 | { | |
7967 | if (outfiles[i] && !filename_cmp (outfiles[i], argv[0])) | |
7968 | outfiles[i] = xstrdup (argv[1]); | |
7969 | } | |
7970 | return NULL; | |
7971 | } | |
7972 | ||
7973 | /* remove-outfile built-in spec function. | |
7974 | * | |
7975 | * This looks for the first argument in the outfiles array's name and | |
7976 | * removes it. */ | |
7977 | ||
7978 | static const char * | |
7979 | remove_outfile_spec_function (int argc, const char **argv) | |
7980 | { | |
7981 | int i; | |
7982 | /* Must have exactly one argument. */ | |
7983 | if (argc != 1) | |
7984 | abort (); | |
7985 | ||
7986 | for (i = 0; i < n_infiles; i++) | |
7987 | { | |
7988 | if (outfiles[i] && !filename_cmp (outfiles[i], argv[0])) | |
7989 | outfiles[i] = NULL; | |
7990 | } | |
7991 | return NULL; | |
7992 | } | |
7993 | ||
7994 | /* Given two version numbers, compares the two numbers. | |
7995 | A version number must match the regular expression | |
7996 | ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))* | |
7997 | */ | |
7998 | static int | |
7999 | compare_version_strings (const char *v1, const char *v2) | |
8000 | { | |
8001 | int rresult; | |
8002 | regex_t r; | |
8003 | ||
8004 | if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$", | |
8005 | REG_EXTENDED | REG_NOSUB) != 0) | |
8006 | abort (); | |
8007 | rresult = regexec (&r, v1, 0, NULL, 0); | |
8008 | if (rresult == REG_NOMATCH) | |
8009 | fatal_error ("invalid version number %qs", v1); | |
8010 | else if (rresult != 0) | |
8011 | abort (); | |
8012 | rresult = regexec (&r, v2, 0, NULL, 0); | |
8013 | if (rresult == REG_NOMATCH) | |
8014 | fatal_error ("invalid version number %qs", v2); | |
8015 | else if (rresult != 0) | |
8016 | abort (); | |
8017 | ||
8018 | return strverscmp (v1, v2); | |
8019 | } | |
8020 | ||
8021 | ||
8022 | /* version_compare built-in spec function. | |
8023 | ||
8024 | This takes an argument of the following form: | |
8025 | ||
8026 | <comparison-op> <arg1> [<arg2>] <switch> <result> | |
8027 | ||
8028 | and produces "result" if the comparison evaluates to true, | |
8029 | and nothing if it doesn't. | |
8030 | ||
8031 | The supported <comparison-op> values are: | |
8032 | ||
8033 | >= true if switch is a later (or same) version than arg1 | |
8034 | !> opposite of >= | |
8035 | < true if switch is an earlier version than arg1 | |
8036 | !< opposite of < | |
8037 | >< true if switch is arg1 or later, and earlier than arg2 | |
8038 | <> true if switch is earlier than arg1 or is arg2 or later | |
8039 | ||
8040 | If the switch is not present, the condition is false unless | |
8041 | the first character of the <comparison-op> is '!'. | |
8042 | ||
8043 | For example, | |
8044 | %:version-compare(>= 10.3 mmacosx-version-min= -lmx) | |
8045 | adds -lmx if -mmacosx-version-min=10.3.9 was passed. */ | |
8046 | ||
8047 | static const char * | |
8048 | version_compare_spec_function (int argc, const char **argv) | |
8049 | { | |
8050 | int comp1, comp2; | |
8051 | size_t switch_len; | |
8052 | const char *switch_value = NULL; | |
8053 | int nargs = 1, i; | |
8054 | bool result; | |
8055 | ||
8056 | if (argc < 3) | |
8057 | fatal_error ("too few arguments to %%:version-compare"); | |
8058 | if (argv[0][0] == '\0') | |
8059 | abort (); | |
8060 | if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!') | |
8061 | nargs = 2; | |
8062 | if (argc != nargs + 3) | |
8063 | fatal_error ("too many arguments to %%:version-compare"); | |
8064 | ||
8065 | switch_len = strlen (argv[nargs + 1]); | |
8066 | for (i = 0; i < n_switches; i++) | |
8067 | if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len) | |
8068 | && check_live_switch (i, switch_len)) | |
8069 | switch_value = switches[i].part1 + switch_len; | |
8070 | ||
8071 | if (switch_value == NULL) | |
8072 | comp1 = comp2 = -1; | |
8073 | else | |
8074 | { | |
8075 | comp1 = compare_version_strings (switch_value, argv[1]); | |
8076 | if (nargs == 2) | |
8077 | comp2 = compare_version_strings (switch_value, argv[2]); | |
8078 | else | |
8079 | comp2 = -1; /* This value unused. */ | |
8080 | } | |
8081 | ||
8082 | switch (argv[0][0] << 8 | argv[0][1]) | |
8083 | { | |
8084 | case '>' << 8 | '=': | |
8085 | result = comp1 >= 0; | |
8086 | break; | |
8087 | case '!' << 8 | '<': | |
8088 | result = comp1 >= 0 || switch_value == NULL; | |
8089 | break; | |
8090 | case '<' << 8: | |
8091 | result = comp1 < 0; | |
8092 | break; | |
8093 | case '!' << 8 | '>': | |
8094 | result = comp1 < 0 || switch_value == NULL; | |
8095 | break; | |
8096 | case '>' << 8 | '<': | |
8097 | result = comp1 >= 0 && comp2 < 0; | |
8098 | break; | |
8099 | case '<' << 8 | '>': | |
8100 | result = comp1 < 0 || comp2 >= 0; | |
8101 | break; | |
8102 | ||
8103 | default: | |
8104 | fatal_error ("unknown operator %qs in %%:version-compare", argv[0]); | |
8105 | } | |
8106 | if (! result) | |
8107 | return NULL; | |
8108 | ||
8109 | return argv[nargs + 2]; | |
8110 | } | |
8111 | ||
8112 | /* %:include builtin spec function. This differs from %include in that it | |
8113 | can be nested inside a spec, and thus be conditionalized. It takes | |
8114 | one argument, the filename, and looks for it in the startfile path. | |
8115 | The result is always NULL, i.e. an empty expansion. */ | |
8116 | ||
8117 | static const char * | |
8118 | include_spec_function (int argc, const char **argv) | |
8119 | { | |
8120 | char *file; | |
8121 | ||
8122 | if (argc != 1) | |
8123 | abort (); | |
8124 | ||
8125 | file = find_a_file (&startfile_prefixes, argv[0], R_OK, true); | |
8126 | read_specs (file ? file : argv[0], FALSE); | |
8127 | ||
8128 | return NULL; | |
8129 | } | |
8130 | ||
8131 | /* %:find-file spec function. This function replaces its argument by | |
8132 | the file found thru find_file, that is the -print-file-name gcc | |
8133 | program option. */ | |
8134 | static const char * | |
8135 | find_file_spec_function (int argc, const char **argv) | |
8136 | { | |
8137 | const char *file; | |
8138 | ||
8139 | if (argc != 1) | |
8140 | abort (); | |
8141 | ||
8142 | file = find_file (argv[0]); | |
8143 | return file; | |
8144 | } | |
8145 | ||
8146 | ||
8147 | /* %:find-plugindir spec function. This function replaces its argument | |
8148 | by the -iplugindir=<dir> option. `dir' is found thru find_file, that | |
8149 | is the -print-file-name gcc program option. */ | |
8150 | static const char * | |
8151 | find_plugindir_spec_function (int argc, const char **argv ATTRIBUTE_UNUSED) | |
8152 | { | |
8153 | const char *option; | |
8154 | ||
8155 | if (argc != 0) | |
8156 | abort (); | |
8157 | ||
8158 | option = concat ("-iplugindir=", find_file ("plugin"), NULL); | |
8159 | return option; | |
8160 | } | |
8161 | ||
8162 | ||
8163 | /* %:print-asm-header spec function. Print a banner to say that the | |
8164 | following output is from the assembler. */ | |
8165 | ||
8166 | static const char * | |
8167 | print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED, | |
8168 | const char **argv ATTRIBUTE_UNUSED) | |
8169 | { | |
8170 | printf (_("Assembler options\n=================\n\n")); | |
8171 | printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n")); | |
8172 | fflush (stdout); | |
8173 | return NULL; | |
8174 | } | |
8175 | ||
8176 | /* Get a random number for -frandom-seed */ | |
8177 | ||
8178 | static unsigned HOST_WIDE_INT | |
8179 | get_random_number (void) | |
8180 | { | |
8181 | unsigned HOST_WIDE_INT ret = 0; | |
8182 | int fd; | |
8183 | ||
8184 | fd = open ("/dev/urandom", O_RDONLY); | |
8185 | if (fd >= 0) | |
8186 | { | |
8187 | read (fd, &ret, sizeof (HOST_WIDE_INT)); | |
8188 | close (fd); | |
8189 | if (ret) | |
8190 | return ret; | |
8191 | } | |
8192 | ||
8193 | /* Get some more or less random data. */ | |
8194 | #ifdef HAVE_GETTIMEOFDAY | |
8195 | { | |
8196 | struct timeval tv; | |
8197 | ||
8198 | gettimeofday (&tv, NULL); | |
8199 | ret = tv.tv_sec * 1000 + tv.tv_usec / 1000; | |
8200 | } | |
8201 | #else | |
8202 | { | |
8203 | time_t now = time (NULL); | |
8204 | ||
8205 | if (now != (time_t)-1) | |
8206 | ret = (unsigned) now; | |
8207 | } | |
8208 | #endif | |
8209 | ||
8210 | return ret ^ getpid(); | |
8211 | } | |
8212 | ||
8213 | /* %:compare-debug-dump-opt spec function. Save the last argument, | |
8214 | expected to be the last -fdump-final-insns option, or generate a | |
8215 | temporary. */ | |
8216 | ||
8217 | static const char * | |
8218 | compare_debug_dump_opt_spec_function (int arg, | |
8219 | const char **argv ATTRIBUTE_UNUSED) | |
8220 | { | |
8221 | const char *ret; | |
8222 | char *name; | |
8223 | int which; | |
8224 | static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3]; | |
8225 | ||
8226 | if (arg != 0) | |
8227 | fatal_error ("too many arguments to %%:compare-debug-dump-opt"); | |
8228 | ||
8229 | do_spec_2 ("%{fdump-final-insns=*:%*}"); | |
8230 | do_spec_1 (" ", 0, NULL); | |
8231 | ||
8232 | if (VEC_length (const_char_p, argbuf) > 0 | |
8233 | && strcmp (argv[VEC_length (const_char_p, argbuf) - 1], ".")) | |
8234 | { | |
8235 | if (!compare_debug) | |
8236 | return NULL; | |
8237 | ||
8238 | name = xstrdup (argv[VEC_length (const_char_p, argbuf) - 1]); | |
8239 | ret = NULL; | |
8240 | } | |
8241 | else | |
8242 | { | |
8243 | const char *ext = NULL; | |
8244 | ||
8245 | if (VEC_length (const_char_p, argbuf) > 0) | |
8246 | { | |
8247 | do_spec_2 ("%{o*:%*}%{!o:%{!S:%b%O}%{S:%b.s}}"); | |
8248 | ext = ".gkd"; | |
8249 | } | |
8250 | else if (!compare_debug) | |
8251 | return NULL; | |
8252 | else | |
8253 | do_spec_2 ("%g.gkd"); | |
8254 | ||
8255 | do_spec_1 (" ", 0, NULL); | |
8256 | ||
8257 | gcc_assert (VEC_length (const_char_p, argbuf) > 0); | |
8258 | ||
8259 | name = concat (VEC_last (const_char_p, argbuf), ext, NULL); | |
8260 | ||
8261 | ret = concat ("-fdump-final-insns=", name, NULL); | |
8262 | } | |
8263 | ||
8264 | which = compare_debug < 0; | |
8265 | debug_check_temp_file[which] = name; | |
8266 | ||
8267 | if (!which) | |
8268 | { | |
8269 | unsigned HOST_WIDE_INT value = get_random_number (); | |
8270 | ||
8271 | sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value); | |
8272 | } | |
8273 | ||
8274 | if (*random_seed) | |
8275 | ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ", | |
8276 | ret, NULL); | |
8277 | ||
8278 | if (which) | |
8279 | *random_seed = 0; | |
8280 | ||
8281 | return ret; | |
8282 | } | |
8283 | ||
8284 | static const char *debug_auxbase_opt; | |
8285 | ||
8286 | /* %:compare-debug-self-opt spec function. Expands to the options | |
8287 | that are to be passed in the second compilation of | |
8288 | compare-debug. */ | |
8289 | ||
8290 | static const char * | |
8291 | compare_debug_self_opt_spec_function (int arg, | |
8292 | const char **argv ATTRIBUTE_UNUSED) | |
8293 | { | |
8294 | if (arg != 0) | |
8295 | fatal_error ("too many arguments to %%:compare-debug-self-opt"); | |
8296 | ||
8297 | if (compare_debug >= 0) | |
8298 | return NULL; | |
8299 | ||
8300 | do_spec_2 ("%{c|S:%{o*:%*}}"); | |
8301 | do_spec_1 (" ", 0, NULL); | |
8302 | ||
8303 | if (VEC_length (const_char_p, argbuf) > 0) | |
8304 | debug_auxbase_opt = concat ("-auxbase-strip ", | |
8305 | VEC_last (const_char_p, argbuf), | |
8306 | NULL); | |
8307 | else | |
8308 | debug_auxbase_opt = NULL; | |
8309 | ||
8310 | return concat ("\ | |
8311 | %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \ | |
8312 | %<fdump-final-insns=* -w -S -o %j \ | |
8313 | %{!fcompare-debug-second:-fcompare-debug-second} \ | |
8314 | ", compare_debug_opt, NULL); | |
8315 | } | |
8316 | ||
8317 | /* %:compare-debug-auxbase-opt spec function. Expands to the auxbase | |
8318 | options that are to be passed in the second compilation of | |
8319 | compare-debug. It expects, as an argument, the basename of the | |
8320 | current input file name, with the .gk suffix appended to it. */ | |
8321 | ||
8322 | static const char * | |
8323 | compare_debug_auxbase_opt_spec_function (int arg, | |
8324 | const char **argv) | |
8325 | { | |
8326 | char *name; | |
8327 | int len; | |
8328 | ||
8329 | if (arg == 0) | |
8330 | fatal_error ("too few arguments to %%:compare-debug-auxbase-opt"); | |
8331 | ||
8332 | if (arg != 1) | |
8333 | fatal_error ("too many arguments to %%:compare-debug-auxbase-opt"); | |
8334 | ||
8335 | if (compare_debug >= 0) | |
8336 | return NULL; | |
8337 | ||
8338 | len = strlen (argv[0]); | |
8339 | if (len < 3 || strcmp (argv[0] + len - 3, ".gk") != 0) | |
8340 | fatal_error ("argument to %%:compare-debug-auxbase-opt " | |
8341 | "does not end in .gk"); | |
8342 | ||
8343 | if (debug_auxbase_opt) | |
8344 | return debug_auxbase_opt; | |
8345 | ||
8346 | #define OPT "-auxbase " | |
8347 | ||
8348 | len -= 3; | |
8349 | name = (char*) xmalloc (sizeof (OPT) + len); | |
8350 | memcpy (name, OPT, sizeof (OPT) - 1); | |
8351 | memcpy (name + sizeof (OPT) - 1, argv[0], len); | |
8352 | name[sizeof (OPT) - 1 + len] = '\0'; | |
8353 | ||
8354 | #undef OPT | |
8355 | ||
8356 | return name; | |
8357 | } | |
8358 | ||
8359 | /* %:pass-through-libs spec function. Finds all -l options and input | |
8360 | file names in the lib spec passed to it, and makes a list of them | |
8361 | prepended with the plugin option to cause them to be passed through | |
8362 | to the final link after all the new object files have been added. */ | |
8363 | ||
8364 | const char * | |
8365 | pass_through_libs_spec_func (int argc, const char **argv) | |
8366 | { | |
8367 | char *prepended = xstrdup (" "); | |
8368 | int n; | |
8369 | /* Shlemiel the painter's algorithm. Innately horrible, but at least | |
8370 | we know that there will never be more than a handful of strings to | |
8371 | concat, and it's only once per run, so it's not worth optimising. */ | |
8372 | for (n = 0; n < argc; n++) | |
8373 | { | |
8374 | char *old = prepended; | |
8375 | /* Anything that isn't an option is a full path to an output | |
8376 | file; pass it through if it ends in '.a'. Among options, | |
8377 | pass only -l. */ | |
8378 | if (argv[n][0] == '-' && argv[n][1] == 'l') | |
8379 | { | |
8380 | const char *lopt = argv[n] + 2; | |
8381 | /* Handle both joined and non-joined -l options. If for any | |
8382 | reason there's a trailing -l with no joined or following | |
8383 | arg just discard it. */ | |
8384 | if (!*lopt && ++n >= argc) | |
8385 | break; | |
8386 | else if (!*lopt) | |
8387 | lopt = argv[n]; | |
8388 | prepended = concat (prepended, "-plugin-opt=-pass-through=-l", | |
8389 | lopt, " ", NULL); | |
8390 | } | |
8391 | else if (!strcmp (".a", argv[n] + strlen (argv[n]) - 2)) | |
8392 | { | |
8393 | prepended = concat (prepended, "-plugin-opt=-pass-through=", | |
8394 | argv[n], " ", NULL); | |
8395 | } | |
8396 | if (prepended != old) | |
8397 | free (old); | |
8398 | } | |
8399 | return prepended; | |
8400 | } | |
5ce9237c JM |
8401 | |
8402 | /* Insert backslash before spaces in ORIG (usually a file path), to | |
8403 | avoid being broken by spec parser. | |
8404 | ||
8405 | This function is needed as do_spec_1 treats white space (' ' and '\t') | |
8406 | as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so, | |
8407 | the file name should be treated as a single argument rather than being | |
8408 | broken into multiple. Solution is to insert '\\' before the space in a | |
8409 | file name. | |
8410 | ||
8411 | This function converts and only converts all occurrence of ' ' | |
8412 | to '\\' + ' ' and '\t' to '\\' + '\t'. For example: | |
8413 | "a b" -> "a\\ b" | |
8414 | "a b" -> "a\\ \\ b" | |
8415 | "a\tb" -> "a\\\tb" | |
8416 | "a\\ b" -> "a\\\\ b" | |
8417 | ||
8418 | orig: input null-terminating string that was allocated by xalloc. The | |
8419 | memory it points to might be freed in this function. Behavior undefined | |
8420 | if ORIG wasn't xalloced or was freed already at entry. | |
8421 | ||
8422 | Return: ORIG if no conversion needed. Otherwise a newly allocated string | |
8423 | that was converted from ORIG. */ | |
8424 | ||
8425 | static char * | |
8426 | convert_white_space (char *orig) | |
8427 | { | |
8428 | int len, number_of_space = 0; | |
8429 | ||
8430 | for (len = 0; orig[len]; len++) | |
8431 | if (orig[len] == ' ' || orig[len] == '\t') number_of_space++; | |
8432 | ||
8433 | if (number_of_space) | |
8434 | { | |
8435 | char *new_spec = (char *) xmalloc (len + number_of_space + 1); | |
8436 | int j, k; | |
8437 | for (j = 0, k = 0; j <= len; j++, k++) | |
8438 | { | |
8439 | if (orig[j] == ' ' || orig[j] == '\t') | |
8440 | new_spec[k++] = '\\'; | |
8441 | new_spec[k] = orig[j]; | |
8442 | } | |
8443 | free (orig); | |
8444 | return new_spec; | |
8445 | } | |
8446 | else | |
8447 | return orig; | |
8448 | } |